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- #include <iostream>
- int main() {
- int n;
- std::cin >> n;
- if(n == 1){
- std::cout << 0;
- return 0;
- }
- if(n < 5){
- std::cout << 1;
- return 0;
- }
- std::cout << 2;
- return 0;
- }
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