#include<bits/stdc++.h>
using namespace std;
#define ll long long
int a[10000001];
int b[10000001];
int main()
{
int tc;
scanf("%d",&tc);
for(int p=1;p<=tc;p++){
int n,k;
scanf("%d %d",&n,&k);
ll r =0;
for(int i=0;i<n;i++)
scanf("%d",&a[i]);
for(int i=0;i<n;i++){
scanf("%d",&b[i]);
if(a[i]<=b[i])
r+=b[i]-a[i];
else if(k>0){
k--;
}
else
r-=a[i]-b[i];
}
printf("Case %d: ",p);
if(r>0)
printf("%lld\n",r);
else
printf("No Profit\n");
}
}
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