The man will first cross the river with the chicken leaving behind the fox and the sack of corn. The fox will not eat the corn since it is carnivorous π .
The next one that the mean will carry is the fox.
But since the fox will eat the chicken , the man will carry back the chicken to the river bank where the sack of corn is left.
The man will leave the chicken , carry the sack of corn, then finally go back to get the chicken.