3. Stream Of Letters

char = input()
word = ''
n_found = False
o_found = False
c_found = False
line = ''
while not char == 'End':
    if 65 <= ord(char) <= 90 or 97 <= ord(char) <= 122:
        if char == 'n':
            if n_found:
                word += char
            else:
                n_found = True
        elif char == 'o':
            if o_found:
                word += char
            else:
                o_found = True
        elif char == 'c':
            if c_found:
                word += char
            else:
                c_found = True
        else:
            word += char

    if n_found and c_found and o_found:
        line += f'{word} '
        word = ''
        n_found = False
        o_found = False
        c_found = False

    char = input()

print(line)