Walking

steps = 0

while steps < 10000:
    command = input()
    if command == 'Going home':
        steps += int(input())
        break
    steps += int(command)

if steps < 10000:
    print(f'{10000 - steps} more steps to reach goal.')
else:
    print(f'Goal reached! Good job!')

ИЛИ:

steps = 10000

while steps > 0:
    command = input()
    if command == 'Going home':
        steps -= int(input())
        break
    steps -= int(command)

if steps > 0:
    print(f'{steps} more steps to reach goal.')
else:
    print(f'Goal reached! Good job!')

РЕШЕНИЕ С ТЕРНАРЕН ОПЕРАТОР:

steps = 10000

while steps > 0:
    command = input()
    steps -= int(command) if command != 'Going home' else int(input())
    if command == 'Going home':
        break

print(f'{steps} more steps to reach goal.' if steps > 0 else f'Goal reached! Good job!')