#include <bits/stdc++.h>   using ll = long long;   const ll maxn = 1234;   const ll inf = 1e9 + 7;   int main(int argc, char *argv[]) {     ll n, m, a[maxn];     std::cin >> n >> m;     ll cur = 0, maxx = 0, minn = 0;     for (int i = 0; i < n; i++) {       std::cin >> a[i];       cur += a[i];       maxx = std::max(maxx, cur);       minn = std::min(minn, cur);     }     ll ans = maxx - minn;     if (maxx - minn > m) {       std::cout << 0;     } else {       std::cout << m - (maxx - minn) + 1;     }   }   