C13332313311211113313331333133313331321123133313232233313223311   >>    C1333231331121111331333133313331333132112313331323223331322331   <<    C13332313311211113313331333133313331321123133313232233313223313   >>      C13332313311211113313331333133313331321123133313232233313223312   >>