public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int N = in . nextInt ( ) ;
  int total = 0 ;
  for ( int n = 0 ;
  n < N ;
  n ++ ) {
    total += in . nextInt ( ) ;
  }
  int M = in . nextInt ( ) ;
  int answer = Integer . MAX_VALUE ;
  for ( int m = 0 ;
  m < M ;
  m ++ ) {
    int L = in . nextInt ( ) ;
    int R = in . nextInt ( ) ;
    if ( total <= R ) {
      answer = Math . min ( answer , Math . max ( L , total ) ) ;
    }
  }
  if ( answer == Integer . MAX_VALUE ) {
    answer = - 1 ;
  }
  System . out . println ( answer ) ;
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int N = in . nextInt ( ) ; int total = 0 ; for ( int n = 0 ; n < N ; n ++ ) { total += in . nextInt ( ) ; } int M = in . nextInt ( ) ; int answer = Integer . MAX_VALUE ; for ( int m = 0 ; m < M ; m ++ ) { int L = in . nextInt ( ) ; int R = in . nextInt ( ) ; if ( total <= R ) { answer = Math . min ( answer , Math . max ( L , total ) ) ; } } if ( answer == Integer . MAX_VALUE ) { answer = - 1 ; } System . out . println ( answer ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier) value: (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: (identifier) right: (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) value: (field_access object: (identifier) field: (identifier)))) (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: (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)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal)))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))