print(lambda t:"".join([[w for w in[t[i:i+l]for i in range(len(t)-l)]if reduce
(lambda x,y:(((x<<5)+x)^y),[5381]+map(ord,w))==h][0]for h,l in((221034333,5),
(1570070990,8),(-685623151,7),(2087808676,4),(193405918,3))]))("".join([
__import__(m).__doc__ for m in("asynchat","httplib","pickle","sched","rfc822")]))