C1111233133313231133133313331333133313231323112331333131122112312111121   >>    C111123313331323113313331333133313331323132311233133313112211231211112   <<    C1111233133313231133133313331333133313231323112331333131122112312111123   >>      C1111233133313231133133313331333133313231323112331333131122112312111122   >>