C11111211113313112113313331333133313331333132212111133133313331322113121311   >>    C1111121111331311211331333133313331333133313221211113313331333132211312131   <<    C11111211113313112113313331333133313331333132212111133133313331322113121313   >>      C11111211113313112113313331333133313331333132212111133133313331322113121312   >>