C312322331333132212111133133313331333133312121111331333131113331323233211331   >>    C31232233133313221211113313331333133313331212111133133313111333132323321133   <<    C312322331333132212111133133313331333133312121111331333131113331323233211333   >>      C312322331333132212111133133313331333133312121111331333131113331323233211332   >>