Write down the AST corresponding to the following Lettuce Program. Refer to note book titled "Lettuce The Let Language" for the grammar (recalled let x 10 in x+10 Fill up the blanks with words (without using any space) Let Plus(ident("x"),Const Program Expr Number Identifier 1 1 I T TopLevel(Expr) Const(Number) True False Ident(Identifier) Plus(Expr. Expr) Minus(Expr. Expr) Muli(Expr, Expr) Div(Expr, Expr) Log(Expr) Exp(Expr) Sine(Expr) Cosine(Expr) Geq(Expr, Expr) Eq(Expr, Expr) And Expr, Expr) Or(Expr, Expr) Nor(Expr) IfThenElse(Expr. Expr, Expr) Ler(Identifier. Expr. Expr) FunDef (Identifier, Expr) 1 FunCall(Expr. Expr) Scala Double Precision Scala String