C111123313331323113313331333133313231323133312111112111111321333131   >>    C11112331333132311331333133313331323132313331211111211111132133313   <<    C111123313331323113313331333133313231323133312111112111111321333133   >>      C111123313331323113313331333133313231323133312111112111111321333132   >>