public static void main ( String [ ] args ) throws Exception {
  BufferedReader input = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  int n = Integer . parseInt ( input . readLine ( ) ) ;
  int [ ] problems = new int [ n ] ;
  int sum = 0 ;
  StringTokenizer tokenizer = new StringTokenizer ( input . readLine ( ) ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    problems [ i ] = Integer . parseInt ( tokenizer . nextToken ( ) ) ;
    sum += problems [ i ] ;
  }
  StringBuilder out = new StringBuilder ( ) ;
  int m = Integer . parseInt ( input . readLine ( ) ) ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) {
    tokenizer = new StringTokenizer ( input . readLine ( ) ) ;
    out . append ( ( sum - problems [ Integer . parseInt ( tokenizer . nextToken ( ) ) - 1 ] ) + Integer . parseInt ( tokenizer . nextToken ( ) ) ) . append ( "\n" ) ;
  }
  System . out . print ( out ) ;
}

public static void main ( String [ ] args ) throws Exception { BufferedReader input = new BufferedReader ( new InputStreamReader ( System . in ) ) ; int n = Integer . parseInt ( input . readLine ( ) ) ; int [ ] problems = new int [ n ] ; int sum = 0 ; StringTokenizer tokenizer = new StringTokenizer ( input . readLine ( ) ) ; for ( int i = 0 ; i < n ; i ++ ) { problems [ i ] = Integer . parseInt ( tokenizer . nextToken ( ) ) ; sum += problems [ i ] ; } StringBuilder out = new StringBuilder ( ) ; int m = Integer . parseInt ( input . readLine ( ) ) ; for ( int i = 0 ; i < m ; i ++ ) { tokenizer = new StringTokenizer ( input . readLine ( ) ) ; out . append ( ( sum - problems [ Integer . parseInt ( tokenizer . nextToken ( ) ) - 1 ] ) + Integer . parseInt ( tokenizer . nextToken ( ) ) ) . append ( " \n " ) ; } System . out . print ( out ) ; }
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