hdu2085

#include <stdio.h>
int main(){
    __int64 h[100],l[100];
    int i,j;
    int n;
    while(~scanf("%d",&n)&&n!=-1){
        h[0]=1;
        l[0]=0;
        for(i=1;i<=n;++i){
            h[i]=h[i-1]*3+l[i-1]*2;
            l[i]=h[i-1]*1+l[i-1]*1;

        }
        printf("%I64d, %I64d
",h[n],l[n]);
    }
    return 0;
}