#include <iostream>
using namespace std;
int main() {
float k, c;
cin >> k >> c;
cout << "x = 0.1 : y = " << k * 0.1 + c << endl;
cout << "x = 1 : y = " << k + c << endl;
cout << "x = 5 : y = " << k * 5 + c;
}
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