C313212111133131211331333133313331333133313231333133313331333132222333221   >>    C31321211113313121133133313331333133313331323133313331333133313222233322   <<    C313212111133131211331333133313331333133313231333133313331333132222333223   >>      C313212111133131211331333133313331333133313231333133313331333132222333222   >>