class Solution {
public:
    int removePalindromeSub(string s) {
        int start=0;
        int ans=1;
        int end=s.length()-1;// 2 pointer approach
        while(start<end){
            if(s[start]!=s[end]) //checking palindromic
            {
                ans=2;
                break;
            }
           start++;
            end--;
        }
        return ans;
    }
};