691 B | 691 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(l, a):
ret = []
for i in l:
ret.append(i * a)
ret.append(i + a)
ret.append(i - a)
if a != 0 and i % a == 0:
ret.append(i // a)
return ret
def solve():
a, b, c = mii()
k = f([a], b)
k = f(k, c)
ans = 1111111111111111
for i in k:
if i >= 0 and i < ans:
ans = i
print(ans)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
solve()