#include<iostream> // cin\cout\endl #include<ctime> //scanf()\printf() #include<cstdlib> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main() { int num = 1; for (int i = 9; i >= 1; --i) { num = (num + 1) * 2; } cout << num << endl; return 0; }