public static void main ( String args [ ] ) {
  Scanner sc = new Scanner ( System . in ) ;
  int N = Integer . parseInt ( sc . next ( ) ) ;
  int M = Integer . parseInt ( sc . next ( ) ) ;
  Map < Integer , Integer > map = new HashMap < Integer , Integer > ( ) ;
  long sum [ ] = new long [ N + 1 ] ;
  int A [ ] = new int [ N + 1 ] ;
  A [ 1 ] = Integer . parseInt ( sc . next ( ) ) ;
  sum [ 0 ] = 0 ;
  sum [ 1 ] = A [ 1 ] ;
  map . put ( ( int ) ( sum [ 1 ] % M ) , 1 ) ;
  for ( int i = 2 ;
  i <= N ;
  i ++ ) {
    A [ i ] = Integer . parseInt ( sc . next ( ) ) ;
    sum [ i ] = sum [ i - 1 ] + A [ i ] ;
    int mod = ( int ) ( sum [ i ] % M ) ;
    if ( map . containsKey ( mod ) ) {
      map . put ( mod , map . get ( mod ) + 1 ) ;
    }
    else {
      map . put ( mod , 1 ) ;
    }
  }
  long ans = 0 ;
  Iterator < Map . Entry < Integer , Integer >> it = map . entrySet ( ) . iterator ( ) ;
  while ( it . hasNext ( ) ) {
    Map . Entry < Integer , Integer > mapEntry = it . next ( ) ;
    long temp = 0 ;
    if ( mapEntry . getKey ( ) == 0 ) {
      for ( long i = mapEntry . getValue ( ) ;
      i > 0 ;
      i -- ) {
        temp += i ;
      }
    }
    else {
      for ( long i = mapEntry . getValue ( ) - 1 ;
      i > 0 ;
      i -- ) {
        temp += i ;
      }
    }
    if ( temp != 0 || mapEntry . getKey ( ) == 0 ) {
      ans += temp ;
    }
  }
  System . out . println ( ans ) ;
}

public static void main ( String args [ ] ) { Scanner sc = new Scanner ( System . in ) ; int N = Integer . parseInt ( sc . next ( ) ) ; int M = Integer . parseInt ( sc . next ( ) ) ; Map < Integer , Integer > map = new HashMap < Integer , Integer > ( ) ; long sum [ ] = new long [ N + 1 ] ; int A [ ] = new int [ N + 1 ] ; A [ 1 ] = Integer . parseInt ( sc . next ( ) ) ; sum [ 0 ] = 0 ; sum [ 1 ] = A [ 1 ] ; map . put ( ( int ) ( sum [ 1 ] % M ) , 1 ) ; for ( int i = 2 ; i <= N ; i ++ ) { A [ i ] = Integer . parseInt ( sc . next ( ) ) ; sum [ i ] = sum [ i - 1 ] + A [ i ] ; int mod = ( int ) ( sum [ i ] % M ) ; if ( map . containsKey ( mod ) ) { map . put ( mod , map . get ( mod ) + 1 ) ; } else { map . put ( mod , 1 ) ; } } long ans = 0 ; Iterator < Map . Entry < Integer , Integer > > it = map . entrySet ( ) . iterator ( ) ; while ( it . hasNext ( ) ) { Map . Entry < Integer , Integer > mapEntry = it . next ( ) ; long temp = 0 ; if ( mapEntry . getKey ( ) == 0 ) { for ( long i = mapEntry . getValue ( ) ; i > 0 ; i -- ) { temp += i ; } } else { for ( long i = mapEntry . getValue ( ) - 1 ; i > 0 ; i -- ) { temp += i ; } } if ( temp != 0 || mapEntry . getKey ( ) == 0 ) { ans += temp ; } } System . out . println ( ans ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier) dimensions: (dimensions))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (array_access array: (identifier) index: (decimal_integer_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (identifier)))) (decimal_integer_literal)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (identifier) index: (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)))))) (if_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal)))))) alternative: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal)))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (generic_type (scoped_type_identifier (type_identifier) (type_identifier)) (type_arguments (type_identifier) (type_identifier))))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)))) (while_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) body: (block (local_variable_declaration type: (generic_type (scoped_type_identifier (type_identifier) (type_identifier)) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal))) consequence: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (identifier)))))) alternative: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))