public static void main ( String args [ ] ) {
  Scanner sc = new Scanner ( System . in ) ;
  int a = sc . nextInt ( ) ;
  int b = sc . nextInt ( ) ;
  int c , count = 0 , i = 0 ;
  if ( b > a ) {
    c = b - a ;
  }
  else {
    c = a - b ;
  }
  if ( c == 1 ) {
    System . out . println ( "1" ) ;
  }
  else {
    while ( c != 0 ) {
      i ++ ;
      if ( c == 1 ) {
        count = count + i ;
        c -- ;
      }
      else {
        count = count + ( 2 * i ) ;
        c = c - 2 ;
      }
    }
    System . out . println ( count ) ;
  }
}

public static void main ( String args [ ] ) { Scanner sc = new Scanner ( System . in ) ; int a = sc . nextInt ( ) ; int b = sc . nextInt ( ) ; int c , count = 0 , i = 0 ; if ( b > a ) { c = b - a ; } else { c = a - b ; } if ( c == 1 ) { System . out . println ( "1" ) ; } else { while ( c != 0 ) { i ++ ; if ( c == 1 ) { count = count + i ; c -- ; } else { count = count + ( 2 * i ) ; c = c - 2 ; } } System . out . println ( count ) ; } }
(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)))) (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: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier))))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) alternative: (block (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (expression_statement (update_expression (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))) (expression_statement (update_expression (identifier)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier)))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))))