#include "cavy_lib.h"

main() {
    char x;
    char y;

    x = 1;
    while (x < 10) {
        y = 1;
        while (y <= x) {
            put_c('*');
            y = y + 1;
        }
        put_c('\n');
        x = x + 1;
    }
}