pragma solidity ^0.5.0;

contract Test {   
    function a(uint x,uint y, uint z) public {
        if (x == y) {
        	z = 0;
        } else if (x == 2) {
            z = 1;
        } else {
        	z = 2;
        }

        if (x == y) {
        	z = 0;
        } else if (x == 2) {
            z = 1;
        } else {
        	z = 2;
        }
    }
}