#q1
a=[0]
exec”a+=[sum(a[:-1])+1];”*input()
print`a`[4:-1]

#q2
a=raw_input().replace(‘ ‘,”).lower()
print (”,u’n\xe3o \xe9′)[a!=a[::-1]]+u’pal\xedndromo’
for x,y in sorted((a.count(x),x)for x in set(a))[::-1]:print’%i: %s’%(x,y)

#q3
import struct as s,socket as o
a,b=raw_input().split()
k=lambda t:bin(s.unpack(‘!I’,o.inet_aton(t))[0])
i=k(a)
m=k(b)
print”%s /%i”%(o.inet_ntoa(s.pack(“!I”,int(i,2)|~int(m,2))),32-m[:0:-1].count(’0′))

#q4
a,b=raw_input().split()
exec’a,b=set([%s]),set([%s])’%(a,b)
print`sorted(a&b)`[1:-1]

#q5
import os
print sum(dict(p=1,c=3,b=3,t=5,a=10,r=50).get(x,0)for x in os.read(0,99))

ou http://pastebin.com/Et882MTV se quebrar