// p02_01.cpp Determines the largest of some positive integer
#include <iostream>
using namespace std;

int main() {
int x, maximum = 0;
cout << "Enter some positive integers, followed\n"
        "by a negative integer:\n";
for (;;) {

cin >> x;
if (x < 0)
 break;
if (x > maximum)
 maximum = x;
}
cout << "Largest: " << maximum << endl;
return 0;
}