import java.util.function.BiFunction;
import java.util.stream.IntStream;
class M {
public static void main
(String[] args
) { (a,b)->IntStream.range(a,b+1).map(i->(""+i).contains("5")?0:1).sum();
System.
out.
println(dontGimme5.
apply(1,
9)); System.
out.
println(dontGimme5.
apply(4,
17)); System.
out.
println(dontGimme5.
apply(-50,
-59)); }
}
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