C1111133313331323223313331333133313113313231333133313222321311222331   >>    C111113331333132322331333133313331311331323133313331322232131122233   <<    C1111133313331323223313331333133313113313231333133313222321311222333   >>      C1111133313331323223313331333133313113313231333133313222321311222332   >>