add 2 to base 3.yaml

name: add 2 to base 3
source code: |
  # Adds 2 to a base three number.
  input: '222'
  blank: ' '
  start state: left
  table:
    # scan to the rightmost digit
    left:
      [2,1,0]: R
      ' '  : {L: q1}
    q1:
      2      : {write: 0, L: q1}
      1      : {write: 2, L: q2}
      [' ',0]: {write: 1, L: q2}
    q2:
      [2,1,0]: L
      ' '    : {R: q3}
    q3:
      [2,1,0]: R
      ' '    : {L: q4}
    q4:
      2      : {write: 0, L: q4}
      1      : {write: 2, L: done}
      [' ',0]: {write: 1, L: done}
    done:
    
positions:
  left: {x: 457.2, y: 118.46, fixed: false}
  q1: {x: 316.5, y: 130.92, fixed: false}
  q2: {x: 259.16, y: 260.2, fixed: false}
  q3: {x: 335.35, y: 379.47, fixed: false}
  q4: {x: 475.1, y: 358.26, fixed: false}
  done: {x: 570, y: 250}