static void print_result ( int a [ ] , int n , int k , int m ) {
  Vector < Vector < Integer >> v = new Vector < Vector < Integer >> ( m ) ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) v . add ( new Vector < Integer > ( ) ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    int rem = a [ i ] % m ;
    v . get ( rem ) . add ( a [ i ] ) ;
    if ( v . get ( rem ) . size ( ) == k ) {
      for ( int j = 0 ;
      j < k ;
      j ++ ) System . out . print ( v . get ( rem ) . get ( j ) + " " ) ;
      return ;
    }
  }
  System . out . print ( "-1" ) ;
}

static void print_result ( int a [ ] , int n , int k , int m ) { Vector < Vector < Integer > > v = new Vector < Vector < Integer > > ( m ) ; for ( int i = 0 ; i < m ; i ++ ) v . add ( new Vector < Integer > ( ) ) ; for ( int i = 0 ; i < n ; i ++ ) { int rem = a [ i ] % m ; v . get ( rem ) . add ( a [ i ] ) ; if ( v . get ( rem ) . size ( ) == k ) { for ( int j = 0 ; j < k ; j ++ ) System . out . print ( v . get ( rem ) . get ( j ) + " ▁ " ) ; return ; } } System . out . print ( " - 1" ) ; }
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