If18. Three integers are given, one of which is different from the other two, equal to each other. Determine the sequence number of a number different from the others.

Solution in Python 3:

import random

def RandNum():
    l = []    
    x1,x2 = random.sample(range(-10, 10), 2)
    N = random.randrange(1,4)
    if N == 1:
        l.append(x1)
        l.append(x1)
        l.append(x2)
    elif N == 2:
        l.append(x1)
        l.append(x2)
        l.append(x2)
    else:
        l.append(x2)
        l.append(x1)
        l.append(x2)
    return l
        
A,B,C = RandNum()

print("Number A:", A)
print("Number B:", B)
print("Number C:", C)

if A == B:
    print("C")
elif A == C:
    print("B")
else:
    print("A")