# 設定英文字母對應的數字
letter_to_digit = {
    'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15, 'G': 16, 'H': 17,
    'I': 34, 'J': 18, 'K': 19, 'L': 20, 'M': 21, 'N': 22, 'O': 35, 'P': 23,
    'Q': 24, 'R': 25, 'S': 26, 'T': 27, 'U': 28, 'V': 29, 'W': 32, 'X': 30,
    'Y': 31, 'Z': 33
}

def validate_id(id_number):
    # 將英文字母轉換成對應的數字
    first_digit = letter_to_digit[id_number[0]]
    # 計算個位數乘９再加上十位數的數字
    first_two_digits = first_digit // 10 + (first_digit % 10) * 9
    
    total = first_two_digits
    # 計算各數字從右到左依次乘１、２、３、４．．．．８
    for i in range(1, len(id_number) - 1):
        total += int(id_number[i]) * (9 - i)
    
    # 求出(2),(3) 及最後一碼的和
    total += int(id_number[-1])
    
    # 判斷是否為 real
    if total % 10 == 0:
        return "real"
    else:
        return "fake"

# 讀取輸入並處理
input_lines = []
try:
    while True:
        line = input()
        input_lines.append(line)
except EOFError:
    pass

# 計算並輸出判斷結果
for line in input_lines:
    result = validate_id(line)
    print(result)