C313212111133131211331333133313331333133313231333133313331322113221   >>    C31321211113313121133133313331333133313331323133313331333132211322   <<    C313212111133131211331333133313331333133313231333133313331322113223   >>      C313212111133131211331333133313331333133313231333133313331322113222   >>