#include <iostream>
#include <vector>
using namespace std;

int main() {
    int n, k, m;
    cin >> n >> k >> m;
    
    vector<int> people(n);
    for (int i = 0; i < n; i++) {
        people[i] = i;
    }
    
    int current = k; 
    
    while (people.size() > 1) {
        current = (current + m - 1) % people.size();
        people.erase(people.begin() + current);
    }
    
    cout << people[0] << endl;
    
    return 0;
}