package main
import "fmt"

func main(){
	var n, s, m int
	fmt.Scan(&n, &s, &m)
	arr := make([]int, n)
	for i := 1; i <= n; i++ {
		arr[i] = i
	}
	while len(arr) > 1 {
		s = (s + m - 1) % len(arr)
		arr = append(arr[:s], arr[s+1:]...)
	}
}