import org.checkerframework.checker.index.qual.IndexOrHigh;
import org.checkerframework.checker.index.qual.LessThan;
import org.checkerframework.checker.index.qual.Positive;

public class Kelloggm228 {
    public void subList(
            @IndexOrHigh("this") @LessThan("#2 + 1") int fromIndex,
            @IndexOrHigh("this") int toIndex) {
        if (fromIndex == toIndex) {
            return;
        }

        @Positive int x = toIndex;
    }
}