public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int N = sc . nextInt ( ) ;
  long [ ] startNum = new long [ 'Z' - 'A' + 1 ] ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    String str = sc . next ( ) ;
    startNum [ str . charAt ( 0 ) - 'A' ] ++ ;
  }
  long comb = 0 ;
  char [ ] march = new char [ ] {
    'M' , 'A' , 'R' , 'C' , 'H' };
    for ( int i = 0 ;
    i < march . length ;
    i ++ ) {
      for ( int j = i + 1 ;
      j < march . length ;
      j ++ ) {
        for ( int k = j + 1 ;
        k < march . length ;
        k ++ ) {
          comb += startNum [ march [ i ] - 'A' ] * startNum [ march [ j ] - 'A' ] * startNum [ march [ k ] - 'A' ] ;
        }
      }
    }
    out . println ( comb ) ;
  }
  
public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int N = sc . nextInt ( ) ; long [ ] startNum = new long [ ' Z ' - ' A ' + 1 ] ; for ( int i = 0 ; i < N ; i ++ ) { String str = sc . next ( ) ; startNum [ str . charAt ( 0 ) - ' A ' ] ++ ; } long comb = 0 ; char [ ] march = new char [ ] { ' M ' , ' A ' , ' R ' , ' C ' , ' H ' } ; for ( int i = 0 ; i < march . length ; i ++ ) { for ( int j = i + 1 ; j < march . length ; j ++ ) { for ( int k = j + 1 ; k < march . length ; k ++ ) { comb += startNum [ march [ i ] - ' A ' ] * startNum [ march [ j ] - ' A ' ] * startNum [ march [ k ] - ' A ' ] ; } } } out . println ( comb ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) 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)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (binary_expression left: (binary_expression left: (character_literal) right: (character_literal)) right: (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 (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (update_expression (array_access array: (identifier) index: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))) right: (character_literal))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions) value: (array_initializer (character_literal) (character_literal) (character_literal) (character_literal) (character_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: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal))) right: (array_access array: (identifier) index: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal)))) right: (array_access array: (identifier) index: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal)))))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))