d = {}
cnt = 0
while True:
a = ""
try:
a = input()
except:
break
try:
d[a]+=1
except:
d[a]=1
finally:
cnt+=1
L = sorted(list(d.items()),key =lambda t:t[0])
for i in L:
print("%s %.4f" %(i[0],i[1]*100/cnt))