#include<bits/stdc++.h>
using namespace std;
class TrieNode
{
public:
TrieNode *left;
TrieNode *right;
int cnt;
TrieNode()
{
left = NULL;
right = NULL;
cnt = 0;
}
};
class Trie
{
TrieNode *root;
public:
Trie()
{
root = new TrieNode();
}
void insert(int n)
{
TrieNode *curr = root;
// use bits 30..0 (safe for inputs <= 1e9)
for (int i = 30; i >= 0; --i)
{
int bit = (n >> i) & 1;
if (bit == 0)
{
if (curr->left == NULL)
curr->left = new TrieNode();
curr = curr->left;
curr->cnt++;
}
else
{
if (curr->right == NULL)
curr->right = new TrieNode();
curr = curr->right;
curr->cnt++;
}
}
}
int max_xor_pair(int n)
{
TrieNode *curr = root;
int ans = 0;
for (int i = 30; i >= 0; --i)
{
if (curr == NULL) break;
int bit = (n >> i) & 1;
if (bit == 0)
{
if (curr->right != NULL && curr->right->cnt > 0)
{
ans |= (1 << i); // safe shift because i <= 30
curr = curr->right;
}
else
{
curr = curr->left;
}
}
else
{
if (curr->left != NULL && curr->left->cnt > 0)
{
ans |= (1 << i);
curr = curr->left;
}
else
{
curr = curr->right;
}
}
}
return ans;
}
};
void solve()
{
int n,x;
cin>>n>>x;
vector<int> vec(n+1);
for(int i=1;i<=n;i++)
{
cin>>vec[i];
vec[i]^=vec[i-1];
}
auto ok=[&](int len)->bool
{
Trie tr;
tr.insert(0);
for(int i=len;i<=n;i++)
{
tr.insert(vec[i-len]);
if(tr.max_xor_pair(vec[i])>=x) return true;
}
return false;
};
int low=1,high=n+1;
while(high-low>1)
{
int mid=low+(high-low)/2;
if(ok(mid)) low=mid;
else high=mid;
}
Trie tr;
tr.insert(0);
for(int i=low;i<=n;i++)
{
tr.insert(vec[i-low]);
if(tr.max_xor_pair(vec[i])>=x)
{
cout<<i-low+1<<" "<<low<<'\n';
return;
}
}
}
int main()
{
ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
int t=1;
// cin>>t;
for(int i=1;i<=t;i++)
{
//cout<<"Case "<<i<<": ";
solve();
}
}
