C1111233133313231133133313331333133311221123121111331322331333132313231   >>    C111123313331323113313331333133313331122112312111133132233133313231323   <<    C1111233133313231133133313331333133311221123121111331322331333132313233   >>      C1111233133313231133133313331333133311221123121111331322331333132313232   >>