#include<stdio.h>
#include<stdlib.h> //·¥´ý
#include<string>
#include<math.h>
#define INT long long int
using namespace std;
char in[100], out[100];

int n;
int f(int c, int m, int a){
	int ans=0;
	if(a>2) return 0;
	if(c==n) return 1;
	if(c>n) return 0;
	for(int i=1;i<4;i++){
		if(i!=m) ans += f(c+i,i,1);
		else ans+= f(c+i,i,a+1);
	}
	return ans;
}
int main(){
	for(int I = 1; I<=15; I++){
		sprintf(in,".%d.in",I);
        freopen(in,"w",stdout);
        n = I;
		//scanf("%d", &n);
		printf("%d", n);
		sprintf(in,".%d.out",I);
        freopen(in,"w",stdout);
		printf("%d",f(0,0,0));
	}
}