import sys
import bisect   # 二分
import numpy as np  # 色々
import queue
import math
from itertools import product   # bit全
from collections import deque   # deque
MOD = int(1e9+7)
INF = 1<<60
PI = math.pi

#d=deque()  deque Objects
#q=queue.Queue()    queue Objects
#q=queue.LifoQueue()    stack Objects
#q=queue.PriorityQueue()    Priority Objects

S=input().split("/")

print(int(S[0])/int(S[1]))