C313212111133131211331333133313331323132313331333133313223312112121   >>    C31321211113313121133133313331333132313231333133313331322331211212   <<    C313212111133131211331333133313331323132313331333133313223312112123   >>      C313212111133131211331333133313331323132313331333133313223312112122   >>