C313212111133131211331333133313331333131121133133313223313231122112323311   >>    C31321211113313121133133313331333133313112113313331322331323112211232331   <<    C313212111133131211331333133313331333131121133133313223313231122112323313   >>      C313212111133131211331333133313331333131121133133313223313231122112323312   >>