Python:

a, b, c = map(int, input().split())
expr1 = a + b + c
expr2 = a * b * c
expr3 = a + b * c
expr4 = (a + b) * c
expr5 = a * b + c
expr6 = a * (b + c)
result = max(expr1, expr2, expr3, expr4, expr5, expr6)
print(result)