$input int N;
$input int M;
$assume(N > 0 && N < 3);
$assume(M > 0 && M < 3);

void main() {
  int k = M*N;
  int a[k];
  
  for (int i = 0; i < k; i++) {
    a[i] = i;
    if(i == 35) // the upper bound of i should be at least 33 to trigger the exception.
      break;
  }
}