#include <iostream>
#include <fstream>
#define MAX 100005
using namespace std;
ifstream f ("bfs.in");
ofstream g ("bfs.out");
int x,y,m,n,s,i,j,r[MAX],c[MAX],v[MAX],inc,sf;
struct muchie
{
    int x,y;
}a[MAX];
int main()
{
    f>>n>>m>>s;
    for (i=1;i<=n;i++) v[i]=-1;
    v[s]=0;
    r[0]=1;
    for (i=1;i<=m;i++)
    {
        f>>a[i].x>>a[i].y;
        r[i]=i+1;
    }
    for (i=1;i<m;i++)
    {
        for (j=1+i;j<=m;j++)
        {
            if (a[i].x>a[j].x)
            {
                a[0]=a[i];
                a[i]=a[j];
                a[j]=a[0];
            }
            else if (a[i].x==a[j].x)
            {
                if (a[i].y>a[j].y)
                {
                    a[0]=a[i];
                    a[i]=a[j];
                    a[j]=a[0];
                }
            }
        }
    }
    c[0]=s;
    while (inc<=sf)
    {
        x=c[inc];
        inc++;
        y=r[0];
        while (y<=m&&a[y].x!=x) y=r[y];
        while (y<=m&&a[y].x==x)
        {
            if (v[a[y].y]==-1)
            {
                c[++sf]=a[y].y;
                v[a[y].y]=v[x]+1;
            }
            y=r[y];
        }
    }
    for (i=1;i<=n;i++)
        g<<v[i]<<' ';
    return 0;
}