#include<bits/stdc++.h> using namespace std; int main(){ int n,i,j,x=1; cin>>n; for(i=1;i<=n;i++){ for(j=1;j<=i;j++){ cout<<x; } cout<<endl; x++; } } /************************************************************** Problem: 1783 User: chenjiahui Language: C++ Result: Accepted Time:11 ms Memory:2072 kb ****************************************************************/