View Code of Problem 3696

#include<stdio.h>
#include<string.h>
#include<math.h>
//每次末尾数字相乘即可 
int main()
{
	int n;
	while(scanf("%d",&n)!=EOF)
	{
		int m=1;
		int sum=1;
		for(int i=0;i<n;i++)
		{
			sum=m*n;
			if(sum/10>0)
			{
				m=sum%10;
			}
			else m=sum;
//				printf("%d\n",m);
		}
		printf("%d\n",m);
	}
}