#include <iostream>
#include<stdio.h>
using namespace std;
int main() {
// your code goes here
int i,j,k;
int a[10];
printf ("%d",*a+1-*a+3);
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZTxzdGRpby5oPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCiAgaW50IGksaixrOwppbnQgYVsxMF07CnByaW50ZiAoIiVkIiwqYSsxLSphKzMpOwoJcmV0dXJuIDA7Cn0=