C1111233131211111211113313331333133313331322331333131133133313331323131121211   >>    C111123313121111121111331333133313331333132233133313113313331333132313112121   <<    C1111233131211111211113313331333133313331322331333131133133313331323131121213   >>      C1111233131211111211113313331333133313331322331333131133133313331323131121212   >>