C1111133313331323223313331333133313113313231333132212111111332212131   >>    C111113331333132322331333133313331311331323133313221211111133221213   <<    C1111133313331323223313331333133313113313231333132212111111332212133   >>      C1111133313331323223313331333133313113313231333132212111111332212132   >>