C313212111133131211331333133313331333133313231333133313331333131333132223221   >>    C31321211113313121133133313331333133313331323133313331333133313133313222322   <<    C313212111133131211331333133313331333133313231333133313331333131333132223223   >>      C313212111133131211331333133313331333133313231333133313331333131333132223222   >>