func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e5 + 100;   int a[maxn], ans[2 * maxn];   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     int n, m, c;     cin >> n >> m >> c;     for (int i = 0; i < n; i++) cin >> a[i];     for (int i = 0; i < m; i++) {       int val;       cin >> val;       ans[i] += val;       ans[i + n - m + 1] -= val;     }     ans[0] %= c;     for (int i = 1; i < n; i++) ans[i] = (ans[i] + ans[i - 1]) % c;     for (int i = 0; i < n; i++) cout << ((a[i] + ans[i]) % c + c) % c <<    ;     cout << endl;     return 0;   }   