Task: Program Execution
Input (English): Set1: '{2, 5, 6, 7, 10, 12, 13, 14, 18, 19}', Set2: '{5, 6, 8, 12, 13, 14, 15, 16, 17, 18}'. How many elements are there in the intersection of Set1 and Set2 ?
Output (English): 6