#include <iostream>
using namespace std;

const int MAX = 200;

int main()
{
	int n, m, k;
	int a[MAX];
	cin >> n >> m >> k;
	while (n != 0) {
		for(int i=0; i<n; i++) {
			a[i] = i+1;
		}
		int j=-1;
		for(int i=0; i<k; i++) {
			int l=0;
			while (l<m) {
				j = (j+1)%n;
				if (a[j] > 0)
					l++;
			}
			a[j] = 0;
		}
		cout << j+1 << endl;

		cin >> n >> m >> k;
	}
}