C312322331333132212111133133313331323133313331333133313331333133313123211331   >>    C31232233133313221211113313331333132313331333133313331333133313331312321133   <<    C312322331333132212111133133313331323133313331333133313331333133313123211333   >>      C312322331333132212111133133313331323133313331333133313331333133313123211332   >>