C111123313331323113313331333133313331323133113313231333132312121   >>    C11112331333132311331333133313331333132313311331323133313231212   <<    C111123313331323113313331333133313331323133113313231333132312123   >>      C111123313331323113313331333133313331323133113313231333132312122   >>