$155$ points

The following algorithm is used to evaluate the postfix expressions:

Create an empty stack to hold operands.

Repeat the following for each element in the postfix expression, starting from the beginning to the end of the expression:

If the element is an operand, push the operand on the top of the stack.

If the element is an operator, do the following:

Pop the top of the stack as the right operand of the operator.

Pop the new top of the stack as the left operand of the operator.

Perform the operation and push the result back to the stack.

Draw and upload a picture containing the state of the operand stack after each required push$/$pop to evaluate the following postfix expression:

$795+3-**$