#include <iostream>
#include <vector>
using namespace std;
bool czylustrzane(int a, int b){
vector <int> cyfraa;
while(a > 0){
int c = a % 10;
cyfraa.push_back(c);
a /= 10;
}
vector <int> cyfrab;
while(b > 0){
int c = b % 10;
cyfrab.push_back(c);
b /= 10;
}
if(cyfraa.size() != cyfrab.size())return false;
for(int i = 0; i < cyfraa.size(); i++){
if(cyfraa[i] != cyfrab[cyfrab.size() - i - 1])return false;
}
return true;
}
int main() {
int a, b;
cin >> a >> b;
if(czylustrzane(a, b))cout << "ts";
return 0;
}
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