题解 | #整型数组合并#

let n1;
while(n1=parseInt(readline())){
    let arr1 = readline().trim().split(" ");
    let n2 = readline();
    let arr2 = readline().trim().split(" ");
    let arr = [...arr1,...arr2];
    
    var newArr = []
    for (var i = 0; i < arr.length; i++) {
        if (newArr.indexOf(arr[i])===-1) {
            newArr.push(arr[i])
        }
    }
    
    console.log( newArr.sort((a,b)=>a-b).join(""))
   

}