C3123223313331322121111331333133313231333132212111111211331311312331   >>    C312322331333132212111133133313331323133313221211111121133131131233   <<    C3123223313331322121111331333133313231333132212111111211331311312333   >>      C3123223313331322121111331333133313231333132212111111211331311312332   >>