import std.stdio, std.array, std.string, std.conv, std.algorithm; import std.typecons, std.range, std.random, std.math, std.container; import std.numeric, std.bigint, core.bitop, core.stdc.string, core.stdc.stdlib; void main() { auto s = readln.split.map!(to!long); auto N = s[0].to!int; auto L = s[1]; auto R = s[2]; auto A = readln.split.map!(to!long).array; immutable int M = 61; auto possible = new int[][](M+1); void rec(int l, int r, int keta, int si) { if (keta < 0) return; auto B = A[l..r].map!(a => (a & (1L << keta)) > 0).array; auto x = B.dup.uniq.array.length; if (x > 2) { writeln(0); exit(0); } else if (x == 2) { possible[si-1] ~= B.front; int cut = B.countUntil(!B.front).to!int; rec(l, l+cut, keta-1, si+1); rec(l+cut, r, keta-1, si+1); } else { possible[si-1] ~= 2; rec(l, r, keta-1, si+1); } } rec(0, N, M-1, 1); long solve(long ub) { auto dp = new long[][](M+1, 2); dp[0][0] = 1; foreach (i; 0..M) { auto hoge = possible[i].dup.sort().uniq.array; int[] nexts; if (hoge.canFind(0) && hoge.canFind(1)) { writeln(0); exit(0); } else if (hoge.canFind(0)) { nexts ~= 0; } else if (hoge.canFind(1)) { nexts ~= 1; } else { nexts ~= [0, 1]; } bool b = (ub & (1L << (M - i - 1))) > 0; foreach (under; 0..2) { foreach (next; nexts) { if (!under && next && !b) continue; dp[i+1][under||(next