C3123223313331322121111331333133313121111331323133313233313221313231333131   >>    C312322331333132212111133133313331312111133132313331323331322131323133313   <<    C3123223313331322121111331333133313121111331323133313233313221313231333133   >>      C3123223313331322121111331333133313121111331323133313233313221313231333132   >>