How to find out external ip from Mikrotik terminal?

Question

Mikrotik

2ip.ru and other resources do not roll, as I remotely connect to a computer that is connected to a 3G modem. In turn, Mikrotik is connected to this computer, which is connected to a 4G modem.
You need to find out the external ip of the 4G modem.
If I try to find out the external ip through a remote computer using 2ip.ru, it will give out the external ip of the 3G modem

Answer 1

{
/tool ​​fetch url=" https://wtfismyip.com/text " mode=https dst-path=ip.txt
local ip [file get ip.txt contents ]
put $ip
}

Answer 2

do you have a white ip on one side?