Zappa–Szép product

The zappa-szép product is a math thing that you get by multiplying two numbers together in a special way. You start by writing down the first number, then you write the next number next to it but in a different color. Then, under the first number, you write the digits of the second number in reverse order and in the same color as the second number. Then, you add up all the numbers that are diagonally lined up, starting from the right-most digit of the second number and going up and left until you get to the left-most digit of the first number. This gives you one number. Then, you do this again for each digit in the first number, adding up all the diagonal numbers to get a final answer. It's like a fun puzzle you can do with numbers to see what you get!