#include <iostream>
#include <string>

using namespace std;

void triangle(int h, char c = '*') {
    for (int i = 1; i <= h; i++) {
        for (int j = 1; j <= i; j++) {
            cout << c;
        }
        cout << endl;
    }
}

int main () {
    triangle(5);
    triangle(7, '?');
}