#include <iostream>
using namespace std;
bool f1(int a) {
cout << "func1\n";
return a >= 40;
}
bool f2(int a) {
cout << "func2\n";
return a >= 30;
}
bool f3(int a) {
cout << "func3\n";
return a >= 20;
}
bool f4(int a) {
cout << "func4\n";
return a >= 10;
}
int main() {
int a;
cin >> a;
int x = (f1(a) ? 4 : f2(a) ? 3 : f3(a) ? 2 : f4(a) ? 1 : 0);
}
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