why this code not check all conditions of military code, coad trial?

Question

when I try this code it is perfect 👌 but......

a = input().split()
if a[-1] == 'AM' :
x = a[0].split(':')
if int(x[0]) == 12 :
print('00' + ':' + x[-1])
else :
print(a[0])
else :
b = a[0].split(':')
c = 12 + int(b[0])
d = str(c) + ':' + b[-1]
print(d)

Answer 1

What about PM?