#include <iostream>
#include <vector>
using namespace std;
int findMaxValue (vector <int> numbers);
int main() {
    int a = 4, b = 2, c = 5;

    cout << "max value is "<< findMaxValue({a, b, c}) << endl;

    return 0;
}
int findMaxValue (vector <int> numbers){
    int max = numbers[0];
    for (int number : numbers){
        if (max < number)
            max = number;

    }
    return max;
}