C111112111133131121133133313331323133313221211111133132322333122121   >>    C11111211113313112113313331333132313331322121111113313232233312212   <<    C111112111133131121133133313331323133313221211111133132322333122123   >>      C111112111133131121133133313331323133313221211111133132322333122122   >>