C312322331333132212111133133313331323133313331333131211111121331   >>    C31232233133313221211113313331333132313331333133313121111112133   <<    C312322331333132212111133133313331323133313331333131211111121333   >>      C312322331333132212111133133313331323133313331333131211111121332   >>