// BFS.cpp : This file contains the 'main' function. Program execution begins and ends there.
//

//#include "pch.h"
#include <iostream>
#include <fstream>
#include <queue>
#include <deque> 
#define MAXV 100001
using namespace std;
ifstream fin("bfs.in");
ofstream fout("bfs.out");
struct edgeNode {
	int value;
	int weight;
	edgeNode * next;
};
class Graph {
private:
	int nEdges, nVertices;
	bool directed;
	deque<edgeNode *> adjacencyList;
	deque<int> degree;
public:
	void initialiseGraph() {
		for (int i = 1; i <= MAXV; ++i) {
			adjacencyList.push_back(nullptr);
		}
		for (int i = 1; i <= MAXV; ++i) {
			degree.push_back(0);
		}
	}
	void readGraph(bool directed, int nVertices, int nEdges) {
		int x, y;
		this->directed = directed;
		this->nVertices = nVertices;
		this->nEdges = nEdges;
		initialiseGraph();
		for (int i = 1; i <= nEdges; ++i) {
			fin >> x >> y;
			if(x != y)
			insertEdge(y, x, directed);
		}
	}
	void insertEdge(int x, int y, bool directed) {
		edgeNode * newVertex = new edgeNode;
		newVertex->value = x;
		newVertex->next = adjacencyList.at(y);
		adjacencyList.at(y) = newVertex;
		degree.at(x)++;
		if (directed == false) {
			insertEdge(y, x, !directed);
		}
	}
	/*void printGraph() {
		edgeNode * neighbor;
		for(int i = 0; i <= nVertices; ++i)
		   if (adjacencyList.at(i) != nullptr) {
				fout << i << " : ";
				neighbor = adjacencyList.at(i);
				while (neighbor != nullptr) {
					fout << neighbor->value << " ";
					neighbor = neighbor->next;
				}
				fout << endl;
			}
	}*/

	void bfs(int start, int N) {
		deque<int>dp;
		for (int i = 0; i <= N; ++i) {
			dp.push_back(-1);
		}
		dp[start] = 0;
		queue<int> vertices;
		
		vertices.push(start);
		while (!vertices.empty()) {
			int x = vertices.front();
			vertices.pop();
			edgeNode * p = adjacencyList.at(x);
			while (p != nullptr) {
				if (dp[p->value] == -1) {
					dp[p->value] = dp[x] + 1;
					vertices.push(p->value);
				}
				p = p->next;

			}
		}
		for (int i = 1; i <= N; i++)
			fout << dp[i] << " ";
	}
};
int main()
{
	int N, M, S;
	fin >> N >> M >> S;
	Graph g;
	g.readGraph(true, N, M);
	
    g.bfs(S, N);
	return 0;
}

// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu

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//   6. In the future, to open this project again, go to File > Open > Project and select the .sln file