C12313211232233312111111312111133133313331323133322233121312232131131   >>    C1231321123223331211111131211113313331333132313332223312131223213113   <<    C12313211232233312111111312111133133313331323133322233121312232131133   >>      C12313211232233312111111312111133133313331323133322233121312232131132   >>