605 B | 605 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
sys.setrecursionlimit(10**7)
BLANK = " "
# inp = input
inp = lambda : sys.stdin.readline().rstrip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
a = ii()
m, n = mii()
k = 2 * min(m / a, n / a)
k = min(k, max(m / a, n))
k = min(k, max(m, n / a))
p(k)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()