(function(program, execJS) { execJS(program) })(function() {
return eval(#{encode_source(source)});
}, function(program) {
var output;
try {
result = program();
if (typeof result == 'undefined' && result !== null) {
print('["ok"]');
} else {
try {
print(JSON.stringify(['ok', result]));
} catch (err) {
print('["err"]');
}
}
} catch (err) {
print(JSON.stringify(['err', '' + err]));
}
});