Create functions

// SPDX-License-Identifier: MIT pragma solidity ^ 0.8;

contract Function{

uint8 a=10;

function returnStateVariable( ) public view returns (uint8) { return a; }

function returnLocalVariable( ) public pure returns (uint8){ uint8 b=20; return b; }

} what is wrong in this code? It is not getting accepted. It is the code provided by the website only in the answers tab.