View Code of Problem 43

#include<bits/stdc++.h>
using namespace std;

int main(void)
{
  string s;
  getline(cin,s);
  for(int i=0;i<s.size();++i)
  {
    if(s[i]>='a'&&s[i]<='z')
      cout<<s[i];
    if(s[i]>='A'&&s[i]<='Z')
      cout<<s[i];
  }
}