def expression_matter(a, b, c):


    calc1 = [a * (b + c)]
    calc2  = [a * b * c]
    calc3 = [a + b * c]
    calc4 = [(a + b) * c]

    highest_so_far = [highest for highest in calc1 for highest in calc2 for highest in calc3 for highest in calc4]

    print(highest_so_far)

expression_matter(1, 2, 3)