View Code of Problem 80

#include<stdio.h>
int main()
{
	int t;
	while(scanf("%d",&t)) 
	{
		if(t>0)
		{
			int i,s=0;
		    for(i=1;i<=t;i++)
		    {
			    s=(s+3)%i;
		    }
		    printf("%d\n",s+1);
		}else 
		{
			break;
		}
	}
	return 0;
}