i also get wa on 8
thats my code
#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a[200],i=1112,j=1;
    a[0]=1;
    long n;
    cin>>n;
    if(n<10){
            if(n==0){
                cout<<"10";
            }
            else{
        cout<<n;
            }
    }
    else{
    while(n>9&&i==1112){
        for(i=2;i<10;i++){
            if(n%i==0){
                n=n/i;
                if(a[j-1]*i<10){
                    a[j-1]=i*a[j-1];
                }else{
                a[j++]=i;
                }
                i=1111;
            }
        }
    }
    a[j]=n;
    if(n>9){
        cout<<"-1";
    }
    else{
            sort(a,a+j+1);
        for(i=0;i<=j;i++){
            cout<<a[i];
        }
    }
    }
}