Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.4.23+commit.124ca40d.js&optimize=false&gist=

MultipleReturnValues.sol

pragma solidity^0.4.10;

contract MultipleReturn {
    function returnFirstValue(uint a, uint b) public pure returns (uint) {
        return a;
    }
    
    function caller() public pure returns (uint) {
        return returnFirstValue({a: 5, b: 10});
    }
    
    function returnAllValues(uint a, uint b, uint c) public pure returns (uint, uint, uint) {
        return (a,b,c);
    }
    
    function callerAll() public pure returns (uint, uint, uint) {
        uint x;
        uint y;
        uint z;
        (x,y,z) = returnAllValues({a:4, b:5, c:6});
        // Swap the values
        (x,y) = (y,x);
        (x,) = returnAllValues(5, 10, 15);
        (,z) = returnAllValues(10, 20, 35);
        return (x,y,z);
    }
}