How to work out 520? 13 14 ?

520. The algorithm of1314 is as follows:

Add 52.8 to any number, multiply it by 5, and subtract 3.9343. Then divide the difference by 0.5 and subtract ten times this arbitrary number, and the result will always be 520. 13 14.

On May 20th, I'm afraid the most frequently said sentence was "I love you all my life". Wow! Blessing and envy. This festival seems to be an unwritten rule, and I have forgotten where it came from. I understand that this is an online Valentine's Day and a love story in the information age. It is scheduled for May 20th and May 2nd1day every year. This festival originated from the metaphor of "520" in the digital love of singer Mavis Fan and the close relationship between "I love you" and "online lover" in the online songs of musician Wu Yulong. Later, "52 1" was gradually given the meaning of "I do, I love you" by couples. Online Valentine's Day is also called "auspicious wedding day", "confession day", "coquetry day" and "courtship day".