func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int d[(100010)];   const long long int mod = 1e9 + 7;   int main() {     int n, m;     cin >> n >> m;     d[0] = d[1] = 1;     int k = max(n, m);     for (int i = 2; i <= k; i++) {       d[i] = (d[i - 1] + d[i - 2]) % mod;     }     long long int ans = (d[n] + d[m] - 1) % mod;     ans = (ans * 2) % mod;     cout << ans << endl;     return 0;   }   