C313212111113331323312111133133313331333131212111133133313221221121   >>    C31321211111333132331211113313331333133313121211113313331322122112   <<    C313212111113331323312111133133313331333131212111133133313221221123   >>      C313212111113331323312111133133313331333131212111133133313221221122   >>