Об­ра­зуй­те от слова ADD од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

The main task is to check their financial figures are correct and it is true that this part is tough work. But in ______ my job is to advise and help them.