import sys

def load(path):
    with open(path, "rb") as f:
        return f.read()

if len(sys.argv) != 4:
    print("Uso: python3 diff3.py A.srm B.srm C.srm")
    sys.exit(1)

A = load(sys.argv[1])
B = load(sys.argv[2])
C = load(sys.argv[3])

if not (len(A) == len(B) == len(C)):
    print("Los saves no tienen el mismo tamaño.")
    sys.exit(1)

print("Offsets que cambian SOLO al abrir el armario:\n")

for i, (a, b, c) in enumerate(zip(A, B, C)):
    if a != c and a == b:
        print(f"Offset 0x{i:05X}: {a:02X} → {c:02X}")