#include<iostream> using namespace std; int main() { int n,i,j,sum=1,k=1; cin >> n; for(i = 1;i<=n;i++) { if(i <= sum) { for(j = 1;j <= k ;j++) { cout <<"*"; } cout <<endl; } else { i--; k++; sum = sum + k; } } return 0; }