Step 1: Initialize coordinates and direction by setting the starting point at (0, 0) and face north.
Step 2: Identify and list up instructions from the input text.
Step 3: Process each instruction and update the current coordinates and direction. In order to keep track of changes, output the instruction, current and updated coordinates and direction.
Step 4: Output "yes" if the final coordinates are (0, 0). Otherwise, output "no" as the final answer.