C13332313311211113313331333133313331323132233133313113321133231323231   >>    C1333231331121111331333133313331333132313223313331311332113323132323   <<    C13332313311211113313331333133313331323132233133313113321133231323233   >>      C13332313311211113313331333133313331323132233133313113321133231323232   >>