by @Zhenglin Yu Fork
{"functions":[],"name":"Date of birth","main":{"rawId":"main","tpe":"Void","name":"main","statements":[{"@type":"Begin","id":"id_027082d9_3af2_4a8c_acfe_35a605427408"},{"newline":true,"@type":"Output","id":"id_26311225_eb8f_4b8f_b5db_3e06cb891eeb","value":"\"Please enter your date of birth\""},{"lengthValue":-1,"@type":"Declare","lengthValue1":"5","tpe":"Integer","name":"num1","lengthValue2":"5","id":"id_b5753621_e589_4be9_9cc9_547cc822eb9d","initValue":null},{"@type":"Input","name":"num1","id":"id_0d926704_471b_44df_a4ac_12c84eead5f8","prompt":null},{"falseBlock":{"statements":[{"newline":true,"@type":"Output","id":"id_2e93d766_9523_4d1b_8972_91c3dd210c5e","value":"\"21th century\""}],"id":"id_10ab1fc4_2b25_47a5_b0e0_ad31932ae3fb"},"trueBlock":{"statements":[{"newline":true,"@type":"Output","id":"id_e3f0f4d9_53f2_4147_9551_a32a6de387b8","value":"\"20th century\""}],"id":"id_ded779f3_2aa6_4540_936e_75f9bf376470"},"condition":"num1<2000","@type":"If","id":"id_9942fbf6_827c_45e7_8079_cda7f7a07d54"},{"@type":"Return","id":"id_208d3de7_00a6_48a4_a334_855f941570df","maybeValue":null}],"parameters":[]},"id":"id_8ab1bfb9_dca9_4745_9217_4982678d1bbb","config":{"showDebugVars":true,"useInputPrompt":false,"echoEnteredValue":false,"showIoBtns":true,"showFunctions":false,"lang":"java","showGenCode":false},"version":"0.3","revision":665}