C1111133313331323223313331333133313113313231333132212111111313231   >>    C111113331333132322331333133313331311331323133313221211111131323   <<    C1111133313331323223313331333133313113313231333132212111111313233   >>      C1111133313331323223313331333133313113313231333132212111111313232   >>