Sequence

function solve(input){

    let collection = input.map(arr=>{

        let singleArr = JSON.parse(arr);
        singleArr.map(Number);
        singleArr.sort((a,b)=>{
            return b-a;
        });
         return JSON.stringify(singleArr);
    });

let uniqueSet = new Set(collection);

let output = Array.from(uniqueSet);


output
    .map(JSON.parse)
    .sort((a,b)=>{
    return a.length - b.length;
})
    .forEach(el=>console.log(`[${el.join(', ')}]`));


}