{"kind":"Program","statements":[
  {"kind":"Local","variables":["d"],"inits":[{"kind":"Literal","value":{"type":"int","value":2}}]},
  {"kind":"Local","variables":["r"],"inits":[
    {"kind":"If","condition":{"kind":"BinaryOp","op":"==","left":{"kind":"Variable","name":"d"},"right":{"kind":"Literal","value":{"type":"int","value":1}}},"then":[
      {"kind":"Literal","value":{"type":"int","value":10}}
    ],"else":[
      {"kind":"If","condition":{"kind":"BinaryOp","op":"==","left":{"kind":"Variable","name":"d"},"right":{"kind":"Literal","value":{"type":"int","value":2}}},"then":[
        {"kind":"Literal","value":{"type":"int","value":20}}
      ],"else":[
        {"kind":"Literal","value":{"type":"int","value":30}}
      ]}
    ]}
  ]},
  {"kind":"Print","expression":{"kind":"Variable","name":"r"}}
]}