View Code of Problem 80

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char *argv[]) {
	int n,i,k=0;
	while(scanf("%d",&n)!=EOF&&n>0){
		for(i=1;i<=n;i++){
			    k=(k+3)%i;
			}
		printf("%d\n",k+1);
	
		} 
	return 0;
}