stream_of_letters

command = input()
c_counter = 0
o_counter = 0
n_counter = 0
c_is_found = False
o_is_found = False
n_is_found = False
word = ""
while command != 'End':
    current_symbol = command
    symbol = ord(current_symbol)
    if 65 <= symbol <= 90 or 97 <= symbol <= 122:
        if current_symbol == 'c':
            if c_counter >= 1:
                word += current_symbol
            else:
                c_counter += 1
                c_is_found = True
        elif command == 'o':
            if o_counter >= 1:
                word += current_symbol
            else:
                o_counter += 1
                o_is_found = True
        elif command == 'n':
            if n_counter >= 1:
                word += current_symbol
            else:
                n_counter += 1
                n_is_found = True
        else:
            word += current_symbol
        if c_is_found and o_is_found and n_is_found:
            print(f'{word}', end =' ')
            c_counter = 0
            o_counter = 0
            n_counter = 0
            c_is_found = False
            o_is_found = False
            n_is_found = False
            word = ''
    command = input()