#!/usr/local/bin/python
# Hever Zsolt
import cgi
def Answer():
print "Content-type: text/html\n\n"
print "<HEADER>\n<TITLE> Mail</TITLE>\n</HEADER>\n"
print "<BODY>\n"
print '<BODY TEXT="#000000" BGCOLOR="#FFFFCC">'
print '<FONT FACE="Arial,Helvetica"><FONT SIZE=+4>'
print "<BR> "
form = cgi.FieldStorage()
muv = form['D1'].value
t1=int(form['T1'].value)
t2=int(form['T2'].value)
if muv == '+':
e=t1+t2
elif muv == '-':
e=t1-t2
elif muv == '*':
e=t1*t2
else:
if t2 != 0:
e=t1/t2
else:
print 'HIBA : Nullaval valo osztas!'
print '<BR>'
e = ' '
print t1,muv,t2,' = ',e
print "</font></BODY>"
Answer()