#include <iostream>
#include <vector>
using namespace std;
int main() {
vector<char> zmienne {'a', 'b', 'c', 'k', 'm', 'n', 'u', 'v', 'w', 'x', 'y', 'z'};
for(char zmienna: zmienne)
cout << zmienna << "+";
cout << "\b <= 100\n";
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8dmVjdG9yPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7Cgl2ZWN0b3I8Y2hhcj4gem1pZW5uZSB7J2EnLCAnYicsICdjJywgJ2snLCAnbScsICduJywgJ3UnLCAndicsICd3JywgJ3gnLCAneScsICd6J307CgkKCWZvcihjaGFyIHptaWVubmE6IHptaWVubmUpCgkJY291dCA8PCB6bWllbm5hIDw8ICIrIjsKCWNvdXQgPDwgIlxiIDw9IDEwMFxuIjsKCXJldHVybiAwOwp9