Statement

Old Man Ivan, hardworking farmer, tired after a long day of beating the fields, he decided to go to bed. Being a religious man, he was visited at night by Apostle in a dream. He promised Ivan that his next harvest will be rich, if the farmer is able to help him out with a problem that had been bothering the poor Apostle for a long time: Because Apostle knows that Old Man Ivan is a mere mortal, he only wants the remainder of this sum when divided by \num666013. Help Ivan solve the problem!