C313212111133131211331333133313331333133313231333132233133313232131   >>    C31321211113313121133133313331333133313331323133313223313331323213   <<    C313212111133131211331333133313331333133313231333132233133313232133   >>      C313212111133131211331333133313331333133313231333132233133313232132   >>