C11112331333132311331333133313331323132322121211113313133313232231   >>    C1111233133313231133133313331333132313232212121111331313331323223   <<    C11112331333132311331333133313331323132322121211113313133313232233   >>      C11112331333132311331333133313331323132322121211113313133313232232   >>