static int countCoPrime ( int a , int b ) {
  Vector < Integer > pairs = new Vector < Integer > ( ) ;
  makePairs ( pairs , a , b ) ;
  int count = 0 ;
  for ( int i = 0 ;
  i < pairs . size ( ) ;
  i ++ ) for ( int j = i + 1 ;
  j < pairs . size ( ) ;
  j ++ ) if ( GCD ( pairs . get ( i ) , pairs . get ( j ) ) == 1 ) count ++ ;
  return count ;
}

static int countCoPrime ( int a , int b ) { Vector < Integer > pairs = new Vector < Integer > ( ) ; makePairs ( pairs , a , b ) ; int count = 0 ; for ( int i = 0 ; i < pairs . size ( ) ; i ++ ) for ( int j = i + 1 ; j < pairs . size ( ) ; j ++ ) if ( GCD ( pairs . get ( i ) , pairs . get ( j ) ) == 1 ) count ++ ; return count ; }
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