#include int main(void){ int N, M; scanf("%d%d",&N,&M); int A = 1; int B = 1; for(int i = 0;i < N;i ++){ A *= 2; } for(int i = 0;i < M;i ++){ B *= 2; } int count = 0; for(int i = 1;i <= A;i ++){ if(i % B == 0){ count++; } } printf("%d",count); }