C111123313331323113313331333133313231323133312111113331323113121   >>    C11112331333132311331333133313331323132313331211111333132311312   <<    C111123313331323113313331333133313231323133312111113331323113123   >>      C111123313331323113313331333133313231323133312111113331323113122   >>