n = int(input())
s = input()
cnt = 0
for i in range(len(s)):
sausage = 0
tteok = 0
for j in range(i, len(s)):
if(s[j] == 's'): sausage += 1
else: tteok += 1
if sausage == tteok:
for j in range(i, len(s)):
print(s[j], end="")
break
2023-03-27