static int countSquares ( int m , int n ) {
  if ( n < m ) {
    int temp = m ;
    m = n ;
    n = temp ;
  }
  return m * ( m + 1 ) * ( 2 * m + 1 ) / 6 + ( n - m ) * m * ( m + 1 ) / 2 ;
}

static int countSquares ( int m , int n ) { if ( n < m ) { int temp = m ; m = n ; n = temp ; } return m * ( m + 1 ) * ( 2 * m + 1 ) / 6 + ( n - m ) * m * ( m + 1 ) / 2 ; }
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