C111112111133131121133133313331323133313221131211331323133313231323221211   >>    C11111211113313112113313331333132313331322113121133132313331323132322121   <<    C111112111133131121133133313331323133313221131211331323133313231323221213   >>      C111112111133131121133133313331323133313221131211331323133313231323221212   >>