C111123313331323113313331333133313231323133312111113231323133313223321331   >>    C11112331333132311331333133313331323132313331211111323132313331322332133   <<    C111123313331323113313331333133313231323133312111113231323133313223321333   >>      C111123313331323113313331333133313231323133312111113231323133313223321332   >>