const getGets = (n1) => {
    let inde0 = 0;

    return () => {
            const toReturn = n1[inde0];
            inde0 ++;
            return toReturn;
    };
};
// this is the test
const test = [
'0',
'10,20,30,40,50',
'2 forward 1',
'2 backwards 1',
'3 forward 2',
'3 backwards 2',
'exit',
];

const gets = this.gets || getGets(test);
const print = this.print || console.log;


let pos = +gets();

let arr = gets().split(',').map(Number);

let sumForward = 0;
let sumBackward = 0;

for (i = 0; i < 10; i++) {
    let temp = arr[i];
    arr.push(temp);
    arr.shift(arr[i]);
    arr.push(arr[i]);
}

while (true) {

    let input = gets();

    if (input === 'exit') {
        break;
    }

    let [x] = input;
    let y = input.replace(/[^a-zA-Z]+/g, '');
    let [z] = input.slice(-1);

    [x , z] = [+x , +z];

    let indx = pos;
    let counter = 0;

    if (y === 'forward') {
        for (i = 0; i < x; i++) {
            indx += z;
            sumForward += arr[indx];
        }
        counter += indx;

    } else if (y === 'backwards') {
        indx = counter;
        for (i = 0; i < x; i++) {
        indx -= (counter - z)
        print(arr[indx])
        sumBackward += arr[indx];
        counter = indx;
        }
    }

}
    print('Forward: ' + sumForward)
    print('Backwards: ' + sumBackward)