function cs(input){
    let arr=input.slice();
    let initialEnergy=arr.shift();
    let winCount=0;
    for (const commands of arr) {
        if(commands!=="End of battle"){
            let energy=Number(commands);
            if(initialEnergy-energy<0){
                console.log(`Not enough energy! Game ends with ${winCount} won battles and ${initialEnergy} energy`);
                return;
            }



            initialEnergy-=energy;
            winCount++
        }else {
            console.log(`Won battles: ${winCount}. Energy left: ${initialEnergy}`);

        }
        if(winCount%3==0){
            initialEnergy+=winCount;
        }

    }







}