Dragon of Loowater

#include<bits/stdc++.h>

using namespace std;

int main()
{
    int n,m,i,j;

    while(scanf("%d%d",&n,&m) && (n||m))
    {
        vector<int>dragon(n);

        vector<int>knight(m);

        for(i=0; i<n; i++)
        {
            scanf("%d",&dragon[i]);
        }

        for(i=0; i<m; i++)
        {
            scanf("%d",&knight[i]);
        }

        sort(dragon.begin(),dragon.end());

        sort(knight.begin(),knight.end());

        int coin;

        i = j = coin = 0;

        while(i<n && j<m)
        {
            while(dragon[i]>knight[j] && j<m)
            {
                j++;
            }

            if(j==m)
            {
                break;
            }

            coin+=knight[j];

            i++;j++;
        }

        if(i==n)
        {
            printf("%d\n",coin);
        }
        else
        {
            printf("Loowater is doomed!\n");
        }
    }

    return 0;
}