View Code of Problem 3696

#include<stdio.h>
int main(){
	long long int n;
	while(scanf("%d",&n)!=EOF){
		if(n==0){
			printf("1\n");
		}
		else if(n%4==1){
			printf("%lld\n",n%10);
		}
		else if(n%4==2){
			printf("%lld\n",n*n%10);
		}
		else if(n%4==3){
			printf("%lld\n",n*n*n%10);
		}
		else
		   printf("%lld\n",n*n*n*n%10);
	}
	return 0;
}