#include<stdio.h>
int m,n,k;
int ans(int num)
{
	if(num==1) return 0;
	return (k+ans(num-1))%num;
}
int main()
{
	scanf("%d %d %d",&n,&k,&m);
	while(n)
	{
		printf("%d\n",(ans(n-1)+m)%n+1);
		scanf("%d %d %d",&n,&k,&m);
	}
	return 0;
}