C1111133313331323223313331333133313113313231331121111133313133131   >>    C111113331333132322331333133313331311331323133112111113331313313   <<    C1111133313331323223313331333133313113313231331121111133313133133   >>      C1111133313331323223313331333133313113313231331121111133313133132   >>