C313212111113331323312111133133313331333131212111133133313332233112331333222211   >>    C31321211111333132331211113313331333133313121211113313331333223311233133322221   <<    C313212111113331323312111133133313331333131212111133133313332233112331333222213   >>      C313212111113331323312111133133313331333131212111133133313332233112331333222212   >>