s = input()
t = ""
q = "treeone"
i = 0
while i < len(s) - len(q) + 1:
    if s[i: i + len(q)] == q:
        t += "forest"
        i += len(q)
    else:
        t += s[i]
        i += 1
t += s[i:]

print(t)