func_code_string: #include <bits/stdc++.h>   using namespace std;   long long Length, X, Y;   long long Dp[10000001];   int main(void) {     register long long i;     cin >> Length >> X >> Y;     Dp[1] = X;     for (i = 2; i <= Length; i++) {       Dp[i] = Dp[i - 1] + X;       if (i & 1) {         Dp[i] = min(Dp[i], Dp[(i >> 1) + 1] + X + Y);       } else {         Dp[i] = min(Dp[i], Dp[i >> 1] + Y);       }     }     cout << Dp[Length] << endl;     return 0;   }   