C111113331333132322331333133313331333132313121111331311233133311232331   >>    C11111333133313232233133313331333133313231312111133131123313331123233   <<    C111113331333132322331333133313331333132313121111331311233133311232333   >>      C111113331333132322331333133313331333132313121111331311233133311232332   >>