class M{
static int c(int x, int y){
return (x%12 < 1
? 12
: x%12)
+ (x != y
? c(-~x % 24, y)
: 0);
}
public static void main
(String[] a
){ System.
out.
println(c
(10,
12)); System.
out.
println(c
(11,
15)); System.
out.
println(c
(10,
22)); }
}
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