C313212111133131211331333133313331333132212113313331323221211111133132211   >>    C31321211113313121133133313331333133313221211331333132322121111113313221   <<    C313212111133131211331333133313331333132212113313331323221211111133132213   >>      C313212111133131211331333133313331333132212113313331323221211111133132212   >>