using LINQ query two (or more) collections

bool YES;

Console.WriteLine("The 'b' array element does not exist:");

for (int i = 0; i < a.Length; i++){

YES = false;

for (int j = 0; j < b.Length; j++){

if (a[i] == b[j]){

YES = true;

break;

 }

}

if (!YES) Console.Write("{0},",a[i]);

}

 

Console.Write("\b ");

int[] a = new int[5] { 1, 22, 39, 6, 10 };

int[] b = new int[5] { 2, 4, 39, 10, 89 };

NotExist(a, b);

Console.ReadKey();