#include <iostream>
int main(int argc, char **argv)
{
int b = 0;
int i, j, k = 0, l=1, c = 10;
for (i = 0; i < c; i++)
{
for (j = 0; j < l; j++)
{
if (i == c - 1)
b = 1;
else if (k == 0)
b = 1;
else if ((j % k) == 0)
{
b = 1;
}
if (b)
{
std::cout << "*";
b = 0;
}
else
std::cout << " ";
}
std::cout << endl;
k++;
l++;
}
return 0;
}