contract Identity =
  // type xy = {x:int, y:int}
  // type xz = {x:int, z:int}
  // type yz = {y:int, z:int}
  record point = {x:int,y:int}
  record cp('a) = {color: string, p:'a}
  //type intpoint = point(int)
  //   //if (x==42) 1 else (x*x)
  // }
  //let baz() = {age:3, name:(4:int)}
  //let foo(a,b,c) = c
  // let rec fac(n) = if((n:int)==0) 1 else (n*fac(n-1))
  //    and main(x) = x::[x+1]
  // let lentr(l) = lent(0,l)
  // let rec len(l) =
  //    switch(l) {
  //     | [] => 0
  //     | x::xs => 1+len(xs)
  //     }
  // let lent(n,l) =
  //   switch (l) {
  //   | [] => n
  //   | (x::xs) => lent(n+1,xs)
  //   }
  //  let rec app(a,b) =
  //     switch(a) {
  //     | [] => b
  //     | (x::xs) => x::app(xs,b)
  //     }
  // let rec revt(l,r) =
  //   switch(l) {
  //   | [] => r
  //   | x::xs => revt(xs,x::r)
  //   }
  // let rev(l) = revt(l,[])
  // let main(x:int) = {
  //   switch(rev([1,2,3])) {
  //   | h::_ => h
  //   }
  //   }
  //let fac(n:int) = {
  //  if (n==0) 1 else (n*fac(n-1))
  //}
  //let main(x) = switch((12,34)) {
  //| (13,_) => x
  //| (_,a) => x+a
  //    | y => y+1
  //  }
  //let main(x) = ({y:0>1, x:x==0}:point(bool))
  //let main(x) = x
  //let main(x) = len(1::2::[])
  //let main(x) = ((x,x):list('a))
  // let main(x) = switch("a") {
  //    	  |  "b" => 0
  // 	  |  "a" => 1
  // 	  |  "c" => 2
  // 	  }
  //let main(x) = x.color+1
  //let main(x) = switch(({x:x, y:x+1}:cp(int))) {
  //              | {y:xx} => xx
  //		}
  //let main(x) = {x:0, y:1, z:2}
  // let id(x) = x
  // let double(x) = x+x
  // let pair(x) = (1,2)
  // let unit(x) = ()
  // let tuples(x) = ((1,x),(2,3,4))
  // let singleton(x) = [x]
  // let rec seq(n) = if (n==0) [] else (app(seq(n-1),[n]))
  // let idString(s:string) = s
  // let pairString(s:string) = (s,s)
  // let revStrings(ss:list(string))=rev(ss)
  // let makePoint(x,y) = {x:x, y:y}
  // let getx(x) = x.x
  // let updatex(p,x) = p{x:x}
  // let quad(x) = {let y=x+x; let z=y+y; z;}
 //  let noblock(x) = {x; x}
 //  let unit(x) = ()
  // let foo(x) = switch (x) {
  //     	       | y => y+1
// 	       }
  // let p(x) = {color:"blue", p:{x:x, y:x+1}}
  //let twice(f,x) = f(f(x))
  // let twice(f,x) = f(f(x))
  // let double(x) = x+x
  // let main(x) = twice((y=>y+y),x)
  // let rec map(f,xs) = switch(xs) {
  // | [] => []
  // | (x::ys) => f(x)::map(f,ys)
  // }
  // let id(x) = x
  // let main(xs) = map(double,xs)
  function z(f,x) = x
  private function s(n) = (f,x)=>f(n(f,x))
  private function add(m,n) = (f,x)=>m(f,n(f,x))
  function main(_) =
    let three=s(s(s(z)))
    add(three,three)
       (((i)=>i+1),0)