C1111233133313231133133313331333133313231323112331323221323233231   >>    C111123313331323113313331333133313331323132311233132322132323323   <<    C1111233133313231133133313331333133313231323112331323221323233233   >>      C1111233133313231133133313331333133313231323112331323221323233232   >>