<reponame>timmartin/skulpt<gh_stars>1000+
print "".isdigit()
print "abc".isdigit()
print " 93".isdigit()
print "13434".isdigit()
print "038".isdigit()
print "0a9c3".isdigit()

print "".isdigit()
print "abc".isdigit()
print " 93".isdigit()
print "13434".isdigit()
print "038".isdigit()
print "0a9c3".isdigit()