Task 4

#include<iostream>
#include<vector>
#include<string>
#include<cmath>
#include<algorithm>
using namespace std;

bool check_polindrom(string word){
    int len = word.length();
    for (int i = 0; i < len / 2; i++)
    if (word[i] != word[len - i - 1])
        return false;
    return true;
}

int main() {
    string a;
    getline(cin, a);
    for (int i = 0; i < a.size(); i++) {
        string b = a;
        b.erase(i, 1);
        if (check_polindrom(b)) {
            cout << i + 1 << "\n";
            system("pause");
            return 0;
        }
    }
    cout << "0" << "\n";
    system("PAUSE");
    return 0;
}