C313212111133131211331333133313331333132212113313231313331323221   >>    C31321211113313121133133313331333133313221211331323131333132322   <<    C313212111133131211331333133313331333132212113313231313331323223   >>      C313212111133131211331333133313331333132212113313231313331323222   >>