public final StartContext start() throws RecognitionException {
		StartContext _localctx = new StartContext(_ctx, getState());
		enterRule(_localctx, 0, RULE_start);
		int _la;
		try {
			_localctx = new ProgramContext(_localctx);
			enterOuterAlt(_localctx, 1);
			{
			setState(55);
			_errHandler.sync(this);
			_la = _input.LA(1);
			while ((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << DEFINE) | (1L << TYPE_INT) | (1L << TYPE_BOOL) | (1L << TYPE_STRING))) != 0)) {
				{
				{
				setState(52); ((ProgramContext)_localctx).def = def();
				((ProgramContext)_localctx).before.add(((ProgramContext)_localctx).def);
				}
				}
				setState(57);
				_errHandler.sync(this);
				_la = _input.LA(1);
			}
			setState(58); ((ProgramContext)_localctx).m = main();
			setState(62);
			_errHandler.sync(this);
			_la = _input.LA(1);
			while ((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << DEFINE) | (1L << TYPE_INT) | (1L << TYPE_BOOL) | (1L << TYPE_STRING))) != 0)) {
				{
				{
				setState(59); ((ProgramContext)_localctx).def = def();
				((ProgramContext)_localctx).after.add(((ProgramContext)_localctx).def);
				}
				}
				setState(64);
				_errHandler.sync(this);
				_la = _input.LA(1);
			}
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}