soal3_5soal

// Khisby Al Ghofari, 06.2017.1.06852, Kelas B
#include <iostream>

using namespace std;

int main(){
   int n;
   cout << "Masukkan angka";
   cin >> n;
   for(int j=1;j<=n;j++){
        int angka=1;
        char huruf='a';
      for(int i=1;i<j;i++){
        if(i%2!=0){
            cout<<angka;
                angka++;
        }else{
            cout<<huruf;
                huruf++;
        }
      }
      cout<<"\n";
   }
}