C11111333133313232233133313331333133313231312111133121111331233321   >>    C1111133313331323223313331333133313331323131211113312111133123332   <<    C11111333133313232233133313331333133313231312111133121111331233323   >>      C11111333133313232233133313331333133313231312111133121111331233322   >>