ip_addresses = ["10.0.0.1", "10.10.1.1", "172.16.1.1","172.16.10.1", "192.168.10.1"]
for ip_addr in ip_addresses:
    if ip_addr.startswith("10."):
        print(f"ip address {ip_addr} 255.0.0.0")
    elif ip_addr.startswith("172."):
        print(f"ip address {ip_addr} 255.255.0.0")
    else:
        print(f"ip address {ip_addr} 255.255.255.0")