/*
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt")
*/
#include<bits/stdc++.h>
#define sz(v) (int)v.size()
#define ll long long
#define pb push_back
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define nl "\n"
using namespace std;
using pii = pair<int, int>;
const int N = (int)25e4 + 7; // make sure this is right
const int M = (int)2e6 + 7;
const int inf = (int)1e9 + 7;
const ll INF = (ll)3e18 + 7;
const ll MOD = (ll)998244353; // make sure this is right
bool bit(int x, int i) {
return x >> i & 1;
}
int sum(int x, int y) {
x += y;
if(x >= MOD) x -= MOD;
return x;
}
pii dir[] = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
int n, k, p[N];
int sz, t[M][2], mn[M];
void add(int mask, int val) {
int v = 0;
for(int i = 29; i >= 0; --i) {
int x = bit(mask, i);
if(!t[v][x]) {
t[v][x] = ++sz;
}
v = t[v][x];
mn[v] = min(mn[v], val);
}
}
int get(int mask) {
int v = 0, res = inf;
bool was = 1;
for(int i = 29; i >= 0; --i) {
int x = bit(k, i), y = bit(mask, i), c = 1 - y;
if(x == 1) {
if(!t[v][c]) {
was = 0;
break;
}
v = t[v][c];
} else {
res = min(res, mn[t[v][c]]);
if(!t[v][y]) {
was = 0;
break;
}
v = t[v][y];
}
}
if(was) res = min(res, mn[v]);
return res;
}
void solve() {
cin >> n >> k;
fill(mn, mn + M, inf);
for(int i = 1; i <= n; ++i) {
cin >> p[i];
p[i] ^= p[i - 1];
}
int L = 0, R = -1;
add(0, 0);
for(int i = 1; i <= n; ++i) {
int j = get(p[i]);
if(i - j > R - L + 1) {
L = j + 1, R = i;
}
add(p[i], i);
}
cout << L << ' ' << R - L + 1;
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
//freopen("c.in", "r", stdin);
//freopen("c.out", "w", stdout);
int test = 1;
//cin >> test;
for(int i = 1; i <= test; ++i) {
//cout << "Case #" << i << ": ";
solve();
}
return 0;
}
