def show(x):
print('<tr><td>%d<td>%d' % (x, -x))
print('<html>')
print('<head>')
print('<link rel="stylesheet" type="text/css" href="../teaching.css">')
print('</head>')
print('<body>')
print('<table border><tr><td>X<td>-X')
show(123456789)
show(2**31 - 1)
show(-2**31)
print('</table>')
print('</body>')
print('</html>')