Function to count minimum number of operations required
static void countDecrements ( long [ , ] arr ) { int n = arr . GetLength ( 0 ) ; int m = arr . GetLength ( 1 ) ; int count_1 = 0 ; int count_2 = 0 ; for ( int i = 0 ; i < n ; i ++ ) { for ( int j = 0 ; j < m ; j ++ ) {