C11112331333132311331333133313331333132313121111331323131113233313331333111   >>    C1111233133313231133133313331333133313231312111133132313111323331333133311   <<    C11112331333132311331333133313331333132313121111331323131113233313331333113   >>      C11112331333132311331333133313331333132313121111331323131113233313331333112   >>