Primary school students fun C ++ programming Lesson 32 26 siblings

#include<iostream> 
using namespace std; 
int main ()
{
  char i;
  for(i='a';i<='z';i++)
    cout<<i<<' ';
  cout<<endl;
  for(i='Z';i>='A';i--)
    cout<<i<<' ';
  return 0;
}