C12313211232233312111111312111133133313331323133323132323322132331321   >>    C1231321123223331211111131211113313331333132313332313232332213233132   <<    C12313211232233312111111312111133133313331323133323132323322132331323   >>      C12313211232233312111111312111133133313331323133323132323322132331322   >>