C1111133313331323223313331333133313113313231333132212111111112121   >>    C111113331333132322331333133313331311331323133313221211111111212   <<    C1111133313331323223313331333133313113313231333132212111111112123   >>      C1111133313331323223313331333133313113313231333132212111111112122   >>