Kangaroo .. sum

    function processData(input) {
        
        var arr,k_1_speed,k_2_speed,k_1,k_2;
        arr = input.split(' ');
        k_1_speed = arr[1];
        k_1 = arr[0];
        k_2_speed = arr[3];
        k_2 = arr[2];
        for (let i = k_1 ; i < 100 ; i += k_1_speed ) {
            
            console.log(i);
        }


        console.log(k_1);

    
    }


    function processData(input) {
        
        var arr,k_1_speed,k_2_speed,k_1,k_2,i,arr1,arr2;
        
        arr = input.split(' ');
        arr1 = [];
        arr2 = [];
        k_1_speed = Number(arr[1]);
        k_1 = Number(arr[0]);
        k_2_speed = Number(arr[3]);
        k_2 = Number(arr[2]);
        
        for ( i = k_1 ; i < 100000;  i += k_1_speed ) {
            arr1.push(i);
            
            
        }
        for ( i = k_2 ; i < 100000 ; i += k_2_speed ) {
            arr2.push(i);
            
        }

    
            for (let k = 0; k < 10001; k++) {
                if (Number(arr1[k]) == Number(arr2[k])) {

                    console.log("YES");
                    break;

                }
                if (k==10000){
                    console.log("NO");
                  
                }
            
            }


    
    }
            
    process.stdin.resume();
    process.stdin.setEncoding("ascii");
    _input = "";
    process.stdin.on("data", function (input) {
        _input += input;
    });
    
    process.stdin.on("end", function () {
        processData(_input);
    });