Files
code_olymp/uts/session_py/O2017_MT/УВВ_ZZ1.py

18 lines
278 B
Python

def swi(g):
if g == 1:
return 0, False
if g == 0:
return 1, True
a = input()
b = input()
ex = []
g = 0
for i in b:
g, doo = swi(g)
if (doo) and (not (i in ex)):
ex.append(i)
b = ''
for i in a:
if not (i in ex):
b += i
print(b)