C313212111113331323312111133133313331333133313331333133313331122112323211   >>    C31321211111333132331211113313331333133313331333133313331333112211232321   <<    C313212111113331323312111133133313331333133313331333133313331122112323213   >>      C313212111113331323312111133133313331333133313331333133313331122112323212   >>