using System; using System.Linq; using System.Linq.Expressions; using System.Collections.Generic; using Debug = System.Diagnostics.Debug; using StringBuilder = System.Text.StringBuilder; using System.Numerics; using Number = System.Int64; namespace Program { public class Solver { public void Solve() { var n = sc.Integer(); var m = sc.Integer(); var q = sc.Integer(); var a = new int[m]; var b = new int[m]; var c = new int[q]; var d = new int[q]; var use = new SortedSet(); var s = new WeighedQuickUnion(n); for (int i = 0; i < m; i++) { a[i] = sc.Integer() - 1; b[i] = sc.Integer() - 1; if (a[i] > b[i]) Swap(ref a[i], ref b[i]); } for (int i = 0; i < q; i++) { c[i] = sc.Integer() - 1; d[i] = sc.Integer() - 1; if (c[i] > d[i]) Swap(ref c[i], ref d[i]); } for (int i = 0; i < q; i++) use.Add(c[i] * 1000000L + d[i]); for (int i = 0; i < m; i++) { if (use.Contains(a[i] * 1000000L + b[i])) continue; s.Unite(a[i], b[i]); } var ans = new int[n]; for (int i = 0; i < n; i++) if (s.Same(i, 0)) ans[i] = -1; for (int i = q - 1; i >= 0; i--) { if (!s.Same(c[i], d[i])) { if (s.Same(d[i], 0)) foreach (var x in s.group[c[i]]) { Debug.Assert(ans[x] == 0); ans[x] = i + 1; } if (s.Same(c[i], 0)) foreach (var x in s.group[d[i]]) { Debug.Assert(ans[x] == 0); ans[x] = i + 1; } s.Unite(c[i], d[i]); } } for (int i = 1; i < n; i++) IO.Printer.Out.WriteLine(ans[i]); } public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput()); static T[] Enumerate(int n, Func f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(i); return a; } static public void Swap(ref T a, ref T b) { var tmp = a; a = b; b = tmp; } } } #region main static class Ex { static public string AsString(this IEnumerable ie) { return new string(System.Linq.Enumerable.ToArray(ie)); } static public string AsJoinedString(this IEnumerable ie, string st = " ") { return string.Join(st, ie); } static public void Main() { var solver = new Program.Solver(); solver.Solve(); Program.IO.Printer.Out.Flush(); } } #endregion #region Ex namespace Program.IO { using System.IO; using System.Text; using System.Globalization; public class Printer: StreamWriter { static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; } public static Printer Out { get; set; } public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } } public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { } public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { } public void Write(string format, T[] source) { base.Write(format, source.OfType().ToArray()); } public void WriteLine(string format, T[] source) { base.WriteLine(format, source.OfType().ToArray()); } } public class StreamScanner { public StreamScanner(Stream stream) { str = stream; } public readonly Stream str; private readonly byte[] buf = new byte[1024]; private int len, ptr; public bool isEof = false; public bool IsEndOfStream { get { return isEof; } } private byte read() { if (isEof) return 0; if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } } return buf[ptr++]; } public char Char() { byte b = 0; do b = read(); while ((b < 33 || 126 < b) && !isEof); return (char)b; } public string Scan() { var sb = new StringBuilder(); for (var b = Char(); b >= 33 && b <= 126; b = (char)read()) sb.Append(b); return sb.ToString(); } public string ScanLine() { var sb = new StringBuilder(); for (var b = Char(); b != '\n'; b = (char)read()) if (b == 0) break; else if (b != '\r') sb.Append(b); return sb.ToString(); } public long Long() { if (isEof) return long.MinValue; long ret = 0; byte b = 0; var ng = false; do b = read(); while (b != 0 && b != '-' && (b < '0' || '9' < b)); if (b == 0) return long.MinValue; if (b == '-') { ng = true; b = read(); } for (; true; b = read()) { if (b < '0' || '9' < b) return ng ? -ret : ret; else ret = ret * 10 + b - '0'; } } public int Integer() { return (isEof) ? int.MinValue : (int)Long(); } public double Double() { var s = Scan(); return s != "" ? double.Parse(s, CultureInfo.InvariantCulture) : double.NaN; } private T[] enumerate(int n, Func f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(); return a; } public char[] Char(int n) { return enumerate(n, Char); } public string[] Scan(int n) { return enumerate(n, Scan); } public double[] Double(int n) { return enumerate(n, Double); } public int[] Integer(int n) { return enumerate(n, Integer); } public long[] Long(int n) { return enumerate(n, Long); } } } #endregion #region WeightedQuickUnion public class WeighedQuickUnion { public List[] group; public WeighedQuickUnion(int n) { group = new List[n]; for (int i = 0; i < n; i++) group[i] = new List() { i }; } public void Unite(int i, int j) { if (Same(i, j)) return; var a = group[i]; var b = group[j]; if (a.Count < b.Count) { var tmp = a; a = b; b = tmp; } foreach (var x in b) { group[x] = a; a.Add(x); } } public bool Same(int i, int j) { return group[i] == group[j]; } } #endregion