C1111133313331323223313331333133313311211111211331312111112312331   >>    C111113331333132322331333133313331331121111121133131211111231233   <<    C1111133313331323223313331333133313311211111211331312111112312333   >>      C1111133313331323223313331333133313311211111211331312111112312332   >>