#include int main() { int n; _int64 a[35],b[35]; int i; a[0]=1; b[0]=0; for(i=1;i<34;i++) { a[i]=3*a[i-1]+2*b[i-1]; b[i]=b[i-1]+a[i-1]; } while(scanf("%d",&n)!=EOF&&n!=-1) { printf("%I64d, %I64d\n",a[n],b[n]); } return 0; }