14. In the kingdom of King Pea, a rumor spread that the Serpent Gorynych had finally been killed. King Pea knew that this could have been done by one of the Russian heroes: Ilya Muromets, Dobrynya Nikitich, or Alyosha Popovich. Summoning them to his court, the king began to question them. Each hero spoke three times, and they said the following:

Ilya Muromets:

1) I did not kill the Serpent Gorynych.
2) I went to foreign lands.
3) The Serpent Gorynych was killed by Alyosha Popovich. Dobrynya Nikitich:
4) The Serpent Gorynych was killed by Alyosha Popovich.
5) If I had killed him, I would not have said so.
6) There is still a lot of evil left.

## Alyosha Popovich:

1) I did not kill the Serpent Gorynych.
2) I have been looking for a feat to accomplish for a long time.
3) Ilya Muromets really went to foreign lands.

Who killed the Serpent, if each hero told the truth only twice and lied once?
14.Let's consider the cases: 1) if the Snake was killed by Ilya Muromets, then he did not lie once but three times, which contradicts the condition, 2) if the Snake was killed by Alyosha Popovich, then all three statements of Ilya will be true, which also contradicts the condition. Only the assumption that the Snake was killed by Dobrynya Nikitich does not contradict the condition.