func_code_string: #include <bits/stdc++.h>   using namespace std;   long long Pow[10005];   long long ans[10005];   int main() {     long long N, X, now = 1, i, con = 0, t;     Pow[0] = 1;     for (i = 1; i <= 40; i++) Pow[i] = Pow[i - 1] * 2;     scanf( %lld %lld , &X, &N);     for (i = 40; i >= 0; i--) {       while (X && X - (Pow[i] - 1) >= 0) {         t = i;         while (t--) ans[con++] = now;         X -= (Pow[i] - 1);         now += N;         now++;       }     }     printf( %lld n , con);     for (i = 0; i < con; i++) printf( %lld  , ans[i]);     return 0;   }   