Hoho, a lot of thanks. I understanded it’s encoded comma and semicolon. I’ve tried and it works correctly.

You can go to:
https://rapidapi.com/trueway/api/trueway-matrix
There you can see an example, enter your points in fields “origins” and “destinations” and generate code snippet on your preferred language. You will see that the comma and semicolon are encoded in escape sequence %2C(or %252C) and %3B(or %253B).

I always have different coordinates and i need to create right request but i don’t know from where i must take semicolon. How semicolon is obtained? What is function or something else to get semicolon of coordinates to this request. I don’t understand, sorry

Between which points do you want to calculate the matrix? By your request, it looks like the matrix is ​​calculated between two origins [(47.5,19.04) and (50.45,30.52)] and two destinations [(47.5,19.04) and (50.45,30.52)].

How i can get semicolon of each pair if i have only latitude and longitude?

Сoordinate pairs(latitude,longitude) in request must be separated by a semicolon(%253B). But in your request there is only a percent symbol(% after 19.04). You request must be:
GET https://trueway-matrix.p.rapidapi.com/CalculateDrivingMatrix?destinations=47.5%2C19.04%3B50.45%2C30.52&origins=47.5%2C19.04%3B50.45%2C30.52