#[JavaScript, size 82, by Ismael Miguel](https://codegolf.stackexchange.com/a/41299/25180)

    var v='',i=0;for(;i<(21<<2)-~1;)v+=i^++i;console.log(v+i)//,.13<<=[[[[]]]]iiijnozz

Previous version:

    var v='',i=0;for(;i<(21<<2)-~1;)v+=i^++i;console.log(v+i);//,.13<<=[[[[]]]]iiijnzz