USE MATLAB

shuffletext

Write a function shuffletext$($ pairs, $s)$ that swaps characters of $s$ as specified by the indices present in the pairs

variable. pairs is a $2-$column matrix, where on each row, you are given the positions of the two characters you need to

swap. If $s$ is not given, use

s$=\text{'}0000000000000000000000000000000000000000000000000000000000000000$