func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[100007];   int main() {     int n, kq;     cin >> n;     if (n == 1) {       cout << 1;       return 0;     }     kq = 2;     for (int i = 1; i <= n; ++i) cin >> a[i];     for (int i = 1; i <= n - 2; ++i) {       int j = 0;       for (j = i + 2; j <= n; ++j)         if (a[j] != a[j - 1] + a[j - 2]) break;       kq = max(kq, j - i);       i = j - 2;     }     cout << kq;     return 0;   }   