import std.conv, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.container, std.math, std.range, std.regex, std.typecons; import core.bitop; class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; } int readInt() { return readToken().to!int; } long readLong() { return readToken().to!long; } real readReal() { return readToken().to!real; } void chmin(T)(ref T t, in T f) { if (t > f) t = f; } void chmax(T)(ref T t, in T f) { if (t < f) t = f; } int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = cast(int)(as.length); for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; } int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a < val)); } int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a <= val)); } immutable N = 4; int[][] A; void main() { try { for (; ; ) { A = new int[][](N, N); foreach (x; 0 .. N) foreach (y; 0 .. N) { A[x][y] = readInt(); } auto perm = new int[N * N]; foreach (x; 0 .. N) foreach (y; 0 .. N) { perm[(x * N + y + 1) % (N * N)] = A[x][y]; } debug { writefln("perm = %s", perm); } auto vis = new bool[N * N]; bool ans = true; foreach (u; 0 .. N * N) { if (!vis[u]) { int len; for (int v = u; !vis[v]; v = perm[v]) { ++len; vis[v] = true; } debug { writeln(u, " ", len); } ans = ans && (u == 0 || len == 1); } } writeln(ans ? "Yes" : "No"); } } catch (EOFException e) { } }