static char findExtraCharcter ( String strA , String strB ) {
  int res = 0 , i ;
  for ( i = 0 ;
  i < strA . length ( ) ;
  i ++ ) {
    res ^= strA . charAt ( i ) ;
  }
  for ( i = 0 ;
  i < strB . length ( ) ;
  i ++ ) {
    res ^= strB . charAt ( i ) ;
  }
  return ( ( char ) ( res ) ) ;
}

static char findExtraCharcter ( String strA , String strB ) { int res = 0 , i ; for ( i = 0 ; i < strA . length ( ) ; i ++ ) { res ^= strA . charAt ( i ) ; } for ( i = 0 ; i < strB . length ( ) ; i ++ ) { res ^= strB . charAt ( i ) ; } return ( ( char ) ( res ) ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier)) (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) (return_statement (parenthesized_expression (cast_expression type: (integral_type) value: (parenthesized_expression (identifier)))))))