#include<stdio.h>
#include<math.h>
double bacteria(long b, long h);

int main(void)
{
        long f,g;
        double result;

        scanf("%ld%ld",&f,&g);
        result = bacteria(f,g);
        printf("%g\n",result);

return 0;
}

double bacteria(long b,long h)
{
        double d;
        printf("%ld %ld\n",b,h);
        d = b * (pow(2, h*1.0));

return d;
}