#include <iostream>
using namespace std;
// palindrone function
class Solution {
public:
    bool isPalindrome(string s) {
    	int i;
    if (s[i] < 'A' || s[i] > 'Z' && s[i] < 'a'
            || s[i] > 'z') {
            // erase function to erase
            // the character
            s.erase(i, 1);
            i--;
        }
    }
 
 
 
};
 
int main() {
	// your code goes here
	Solution s1;
	bool Palindrome1=s1.isPalindrome("A man, a plan, a canal: Panama");
	cout<<Palindrome1;
	return 0;
}

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