def tm081():
s1=input()
s2=input()
Flag='true'
for value in s1:
if value not in s2:
print('false')
quit()
print(Flag)
if __name__=='__main__':
tm081()
s1=input()
s2=input()
Flag='true'
for value in s1:
if value not in s2:
print('false')
quit()
print(Flag)
if __name__=='__main__':
tm081()