import sys
from xml.sax import make_parser
from xml.sax.handler import ContentHandler
from xml.sax.saxutils import quoteattr
 
class MyHandler(ContentHandler):
    def __init__(self):
        ContentHandler.__init__(self)
 
    def startDocument(self):
        print "<node>"
        self.level = 0
        self.prev = None
 
    def endDocument(self):
        if self.prev != None:
            print self.prev + "/>"
        for i in range(self.level):
            print "</node>"
        print "</node>"
 
    def startElement(self, name, attrs):
        if len(attrs) > 0:
            level = int(attrs["level"])
            if level <= self.level:
                if self.prev != None:
                    print self.prev + "/>"
                for i in range(self.level - level):
                    print "</node>"
            else:
                if self.prev != None:
                    print self.prev + ">"
                if level > self.level + 1:
                    for i in range(level - self.level - 1):
                        print "<node>"
            self.prev = "<node" + \
                " type=" + quoteattr(attrs['type']) + \
                " name=" + quoteattr(attrs['name']) 
            self.level = level
 
def main():
    parser = make_parser()
    handler = MyHandler()
    parser.setContentHandler(handler)
    parser.parse(sys.argv[1])
 
if __name__ == '__main__':
    main()