#include <stdio.h>

long long int recurse(int r, int c) {
  long long int res = 0;
  if (r < 16 && c < 16) {
    res += recurse(r + 1, c);
    res += recurse(r, c + 1);
  } else {
    res = 1;
  }
  return res;
}

int main() {
  long long int n = recurse(0,0);
  printf("Total: %llu\n",n);
}