function solve(input){
    let finalBand = input.pop()
    input.pop()
    let bandsParams = {
        bands: {},
        totalTime: 0
    }
        for(let inp of input){
            if(inp.includes('Play')){
                let [command,band,time] = inp.split("; ")
                time = +time;
                if(bandsParams.bands.hasOwnProperty(band)){
                    bandsParams.bands[band].time += time

                }else{
                    bandsParams.bands[band] = {
                        time: time,
                        totalmembers: []
                    }
                }
                bandsParams.totalTime += time;
            }else if(inp.includes('Add')){
                let [command,band,...members] =inp.split("; ")
                members = members[0].split(", ")
                if(bandsParams.bands.hasOwnProperty(band)){
                    bandsParams.bands[band].totalmembers.push([...new Set(members)])

                }else{
                    bandsParams.bands[band] ={
                        time: 0,
                        totalmembers: [...new Set(members)]
                    }
                }

            }
        }
    console.log(`Total time: ${bandsParams.totalTime}`)
    for(let [key,value] of Object.entries(bandsParams.bands)){
        console.log(val)

    }
    }
    solve([ 'Play; The Beatles; 2584',
    'Add; The Beatles; John Lennon, Paul McCartney, George Harrison, Ringo Starr',
    'Add; Eagles; Glenn Frey, Don Henley, Bernie Leadon, Randy Meisner',
    'Play; Eagles; 1869',
    'Add; The Rolling Stones; Brian Jones, Mick Jagger, Keith Richards',
    'Add; The Rolling Stones; Brian Jones, Mick Jagger, Keith Richards, Bill Wyman, Charlie Watts, Ian Stewart',
    'Play; The Rolling Stones; 4239',
    'start of concert',
    'The Rolling Stones' ])