Who is the Strongest?

Storyline

The brothers Papolya and Nyakochi argued over who should chop the wood and who was stronger. In the struggle, Nyakochi knocked down his brother, but slipped on an ice floe. So the ice floe is stronger than Nyakochi? But the sun melted the ice floe, the cloud covered the sun, the wind dispersed the clouds, the rock stopped the wind, the tree destroyed the rock, and Nyakochi and Papolya cut down the tree. Based on a Nenets folk tale.