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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4. int main() {
  5. string a;
  6. cin >> a;
  7. int aback= a.back()-'0';
  8. cout << aback ;
  9. return 0;
  10. }
Success #stdin #stdout 0s 4944KB
stdin
1234
stdout
4