IStatement s1 = new CompoundStatement(new AssignmentStatement("v", new ConstantExpression(10)),
                    new CompoundStatement(new newStatement("a", new ConstantExpression(22)),
                            new CompoundStatement(new forkStatement(new CompoundStatement(new writeHeap("a", new ConstantExpression(30)),
                                    new CompoundStatement(new AssignmentStatement("v", new ConstantExpression(32)),
                                            new CompoundStatement(new PrintStatement(new VariableExpression("v", symbolTable1)), new PrintStatement(new readHeapExpression("a")))))),
                                    new CompoundStatement(new PrintStatement(new VariableExpression("v", symbolTable1)), new PrintStatement(new readHeapExpression("a"))))));