#include <iostream>
using namespace std;
int main() {
char t = 'T';
string v = (
( t == 'B' ) ? "bus" :
( t == 'A' ) ? "airplane" :
( t == 'T' ) ? "train" :
( t == 'C' ) ? "car" :
( t == 'H' ) ? "horse" :
"feet" );
cout << v;
}
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