from collections import defaultdict, deque, Counter
import copy
from itertools import combinations, permutations, product, accumulate
from heapq import heapify, heappop, heappush
import math
import bisect
import sys
# sys.setrecursionlimit(700000)
input = lambda: sys.stdin.readline().rstrip('\n')
inf = float('inf')
mod1 = 10**9+7
mod2 = 998244353
def ceil_div(x, y): return -(-x//y)

#################################################

T, S, D = map(int, input().split())
print(D/S)