How many fires did the protagonist build in "To Build a Fire"?

The solitary protagonist of "To Build a Fire" built three
fires in all. He built his first fire in order to thaw out his frozen fingers and toes.
He plucked his firewood from the undergrowth, where he found a supply of twigs. A
roaring fire was soon going, and he thawed the ice from his face and ate his
lunch--biscuits and bacon. Before leaving, he smoked his pipe. He built his second fire
after cracking through the thin ice and wetting his feet. The fire was a success--for a
few moments, for he had unwittingly built it under a spruce tree, and the heat caused
snow to fall from the tree and smother the fire. The man managed to build a third fire,
using his remaining 70 matches at once in his frozen hands, but a piece of moss
smothered the fire, leaving the man without a way to build another, and leaving him
alone to deal with the elements.