pos = [0, 0] direction_key = {"forward": (1, 0), "down": (0, 1), "up": (0, -1)} with open("day02.in") as f: # fa = [i for i in f] for x in f: cmd = x.split()[0] val = int(x.split()[1]) pos[0] += direction_key[cmd][0] * val pos[1] += direction_key[cmd][1] * val print("Current position:", pos) print("Product:", pos[0] * pos[1])