C313212111113331323312111133133313331333133313331333133313231333132112323121   >>    C31321211111333132331211113313331333133313331333133313331323133313211232312   <<    C313212111113331323312111133133313331333133313331333133313231333132112323123   >>      C313212111113331323312111133133313331333133313331333133313231333132112323122   >>