num1=input()
num2=input()

# 化繁为简。遍历num1，如果num1在num2，就count加1，如果count等于num1长度。就返回true，否则返回false
count=0
for i in num1:
    if i in num2:
        count=count+1
if count==len(num1):
    print("true")
else:
    print("false")