Activity «Substring» can be found in section «Strings».

Select a substring from a string, returns the trimmed string. As a parameter, it uses the serial number of the character, starting from which you need to trim the string.
You can also specify the length of the cut out part of the line (in the case when you want to read the line to the end of the line, the length is set to zero).
Нажмите на изображение, чтобы увеличить его.