package nowcoder;

import java.util.Scanner;

public class Main2 {     public static void main(String[] args) {         Scanner sc = new Scanner(System.in);         int n = sc.nextInt();         int k = sc.nextInt();         int m = sc.nextInt();         System.out.println(Main2.getLess(n, k, m));         sc.close();     }          private static int getLess(int n, int k, int m) {         int t = n * k;         int count = 0;                  while(t > 0) {             t -= Math.min(n, m);             count++;         }                  return count;     }
}