C1111233133313231133133313331333133313231312111133133313233313331333133322331   >>    C111123313331323113313331333133313331323131211113313331323331333133313332233   <<    C1111233133313231133133313331333133313231312111133133313233313331333133322333   >>      C1111233133313231133133313331333133313231312111133133313233313331333133322332   >>