#include<fstream.h>
long n,k,i,v[16000],max,x;
int main()
{
ifstream in("transport.in");
ofstream out("transport.out");
in>>n>>k;
for(i=1;i<=n;i++)
{
in>>v[i];
x+=v[i];
if(v[i]>max)
max=v[i];
}
if(k==1)
out<<x;
return 0;
}