StorageVariableIndexOrder.sol

pragma solidity ^0.4.24;

contract A {
    uint256 public a;
    uint256 public b;
}

contract B {
    uint256 public c;
    uint256 public d;
}

contract C is A, B {
    uint256 public e;
    
    constructor() public {
        a = 10;
        b = 20;
        c = 30;
        d = 40;
        e = 50;
    }
}

pragma solidity ^0.4.24;

contract A {
    uint256 public a;
    
    function getValue() view external returns (uint256) {
        return a;
    }
}

contract B {
    uint256 public b;
    
    function getValue() view external returns (uint256) {
        return b;
    }
}

contract C is A, B {
    uint256 public c;
    
    constructor() public {
        a = 10;
        b = 20;
        c = 30;
    }
    
    function getValue() view external returns (uint256) {
        return c;
    }
}