n = input()
for i, value in enumerate(n):
    if value == "t":
        if n[i: i + 7] == "treeone":
            n = n[0: i] + "fores0 " + n[i + 7:]
        else:
            pass
    else:
        pass
else:
    q = n.replace("0 ","t")
    print(q)