C12313211232233312111111312111133133313331323133323232322121121131   >>    C1231321123223331211111131211113313331333132313332323232212112113   <<    C12313211232233312111111312111133133313331323133323232322121121133   >>      C12313211232233312111111312111133133313331323133323232322121121132   >>