function sumOfTwo(nums1, nums2, value) {
    //  write code here.
    let sortedNums2 = nums2.sort(function(a, b){return a-b});
    let dif = value - sortedNums2[sortedNums2.length -1];
    if(nums1.indexOf(dif)>-1){
        return true;
    }
    return false;
}



/**
* Test Suite 
*/
describe('sumOfTwo()', () => {
    it('returns true if a value can be found that by adding one number from each list', () => {
        // arrange
        const nums1 = [1, 2, 3];
        const nums2 = [10, 20, 30, 40];
        const value = 42;
        
        // act
        const result = sumOfTwo(nums1, nums2, value);

        // log
        console.log("result: ", result);
        
        // assert
        expect(result).toBe(true);
    });
});