View Code of Problem 43

#include<bits/stdc++.h>
using namespace std;
string s;
int main(){
	cin>>s;
	int l=s.size();
	for(int i=0;i<l;i++){
		if(s[i]>='a'&&s[i]<='z'||s[i]>='A'&&s[i]<='Z')cout<<s[i];
	} 
	return 0;
}