#include<iostream>
using namespace std;
int main()
{
int ni,ne,i=0;
float int_p=18,ext_p=12,cost=0,temp;
scanf("%d %d",&ni,&ne);
if(ni<0 || ne<0 )
{
cout<<"INVALID INPUT";
}
else if(ni==0 && ne==0)
{
cout<<"Total estimated Cost : 0.0";
}
else
{
for(i=0;i<ni;i++)
{
cin>>temp;
cost+= int_p*temp;
}
for(i=0;i<ne;i++)
{
cin>>temp;
cost+= ext_p*temp;
}
cout<<"Total estimated Cost : "<<cost;
}
return 0;
}
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