#include <iostream>
#include <map>
using namespace std;
 
int main() {
 
	long long n,x;
	cin>>n>>x;
 
	long long a[n];
	for(long long i=0;i<n;i++)
	{
		cin>>a[i];
	}
 
	long long pref[n+1]={0};
	long long sum=0;
	map<long long,long long> Map;
	long long count1=0;
	Map[0]=1;
	for(long long i=1;i<=n;i++)
	{
		sum+=a[i-1];
		pref[i]=sum;
		if(Map.count(pref[i] - x) > 0)
		{
			count1+=Map[pref[i]-x];
		}
		if(Map.count(pref[i]) <= 0)
		{
			Map[pref[i]]=1;
		}
		else
		{
			Map[pref[i]]++;
		}
 
	}
 
	cout<<count1<<endl;
 
	return 0;
}

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MTAwIDAKMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMA==

100 0
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