View Code of Problem 3696

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

	return 0;
	
}