string ="some random text"
new_string = string.lower().split()
chars = {'a','b','c'}
for word in new_string:
if chars & set(word):
print(word)
break
c3RyaW5nID0ic29tZSByYW5kb20gdGV4dCIKbmV3X3N0cmluZyA9IHN0cmluZy5sb3dlcigpLnNwbGl0KCkKY2hhcnMgPSB7J2EnLCdiJywnYyd9Cgpmb3Igd29yZCBpbiBuZXdfc3RyaW5nOgogICAgaWYgY2hhcnMgJiBzZXQod29yZCk6CiAgICAgICAgcHJpbnQod29yZCkKICAgICAgICBicmVhaw==