import java.util.*;

public class Main {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        int sum = input.nextInt() * input.nextInt();
        int taxi = input.nextInt();

        if (sum <= taxi) {
            System.out.println(sum);
        } else
            System.out.println(taxi);

        input.close();
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz