def comp(nums):
    for i in range(len(nums)):
        a = nums[i]
        r = nums[i+1:]
        for j in range(len(r)):
            b = r[j]
            s = r[j+1:]
            for k in range(len(s)):
                c = s[k]
                if a+b+c == 2020:
                    return (a,b,c)
    return False

def main():
    with open("input1a.txt") as file:
        lines = file.readlines()
    lines = [int(line.strip()) for line in lines]

    a,b,c = comp(lines)
    print(f"{a} * {b} * {c} = {a*b*c}")


if __name__ == "__main__":
    main()