#include <stdio.h> int main() { int n = 0; //多组输入 while (~scanf("%d", &n)) { printf("%d\n", 1 << n); getchar(); } return 0; }
#include <stdio.h> int main() { int n = 0; //多组输入 while (~scanf("%d", &n)) { printf("%d\n", 1 << n); getchar(); } return 0; }