function charity(input){
    let string=input.shift();
    for(let line of input){
        if(line==="Finish"){
            break;
        }
        let [command,valueOne,valueTwo]=line.split(" ");
        if(command==="Replace"){
            while(string.includes(valueOne)){
                string=string.replace(valueOne,valueTwo);
            }
            console.log(string)

        }else if(command==="Cut"){
            let startIndex=Number(valueOne);
            let endIndex=Number(valueTwo);
            if(startIndex<=endIndex && startIndex>=0 && endIndex<string.length){
                let firstPart=string.substring(0,startIndex);
                let secondPart=string.substring(endIndex+1);
                string=firstPart+secondPart;
                console.log(string)

            }else {
                console.log(`Invalid indexes!`);
            }

        }else if(command==="Make"){
            if(valueOne==="Upper"){
                string=string.toUpperCase();
                console.log(string);
            }else { //lower
                string=string.toLowerCase();
                console.log(string);

            }

        }else if(command==="Check"){
            if(string.includes(valueOne)){
                console.log(`Message contains ${valueOne}`);
            }else {
                console.log(`Message doesn't contain ${valueOne}`);
            }

        }else if(command==="Sum"){
            let start=Number(valueOne);
            let end=Number(valueTwo);
            if(start>=0 && start<=end && end<string.length){
                let piece=string.substring(start,end+1);
                let sum=0;
                piece.split("").forEach(char=>{
                    sum+=char.charCodeAt(0);
                });
                console.log(sum)
            }else {
                console.log(`Invalid indexes!`);
            }

        }
    }

}