Operations inside variables : <p>I want to make a python script that finds the maximum possible output using 2 operations. The problem it says that there is a syntax error at the 2nd to the last line, in the <code>b</code> in there. How can I fix it? </p>

<pre><code>x = 0
a = int(input("1st number:")) 
c = int(input("2nd number:" )) 
e = int(input("3rd number:" ))
for i in range(4):
    if i == 0:
        b = "+" 
    elif i == 1: 
        b = "-"
    elif i == 2:    
        b = "/"
    else:
        b = "*" 
    for j in range(4):
        if j == 0:
            d = "+" 
        elif j == 1: 
            d = "-" 
        elif j == 2:    
            d = "/" 
        else:
            d = "*" 
        k = a b c d e
        print(k) 
</code></pre>
