Accessing list from its index

how can i access a list which is the output of matches activity. The case is i have to put a variable as the index of the list. the list name is listofdates and the index value will be saved in txndatecount. If i have to access the list it will be in this manner "listofdates(txndatecount)
please help asap

Hi @karan_kapoor1

Like that?