Case10. The robot can move in four directions ("N" - north, "W" - west, "S" - South, "E" - east) and take three digital commands: 0 - continue movement, 1 - turn left, -1 - turn right. The symbol D is the initial direction of the robot and the integer N is the command sent to it. Output the direction of the robot after the command is executed.

Solution in Python 3:

import random

M = random.randrange(1,13)
#M=12
d = {'N' : 'North', 'W' : 'West', 'S' : 'South', 'E' : 'East'}
r = {-1 : "turn right", 0 : "continue movement", 1 : "turn left"}
d1 = {0 : 'N', 1: 'W',  2 : 'S', 3 : 'E'}
try:
    i = random.randrange(0,4)
    #print("i : ", i)
    #print("d1 : ", d1[i])
    #print("d : ", d[d1[i]])
    C = d[d1[i]]
    print("Initial direction (C) : ", C)
    N = random.randrange(-1,2)
    print("Command (N) : ", N)
    print("Turn: ", r[N])
    if N == -1:
        print("Part -1")
        if i == 0:
            i = 3
            #print("Part ", d[d1[i]])
        elif i == 3:
            i = 2
            #print("Part ", d[d1[i]])
        elif i == 2:
            i = 1
            #print("Part ", d[d1[i]])
        elif i == 1:
            i == 0
            #print("Part ", d[d1[i]])
    elif N == 1:
        #print("Part -1")
        if i == 0:
            i = 1
        elif i == 1:
            i = 2
        elif i == 2:
            i = 3
        elif i == 3:
            d1 = 0
    C = d[d1[i]]
    print("New direction (C) : ", C)
except KeyError as e:
    print('Error')