CSES - MST Edge Set Check
  • Time limit: 1.00 s
  • Memory limit: 512 MB

Given an undirected weighted graph and edge sets, determine for each set if the edges can be included in a minimum spanning tree.

Input

The first line has three integers nn, mm and qq: the number of nodes, edges and edge sets. The nodes are numbered 1,2,,n1,2,\dots,n.

The following mm lines describe the edges. Each line has three integers aa, bb, ww: there is an edge between nodes aa and bb with weight ww. The edges are numbered 1,2,,m1,2,\dots,m in the input order.

The following 2q2q lines describe the edge sets. For each set, the first line contains its size and the second line contains its edges. The total number of edges in all sets is at most mm.

You can assume that the graph is connected and simple and each edge appears at most once in the graph.

Output

For each edge set, print YES if the edges can be included in the minimum spanning tree and NO otherwise.

Constraints

  • 1n1051 \le n \le 10^5
  • 1m,q21051 \le m, q \le 2 \cdot 10^5
  • 1a,bn1 \le a,b \le n
  • 1w1091 \le w \le 10^9

Example

Input:

5 6 4
1 2 4
1 3 2
2 4 2
3 4 1
3 5 3
4 5 3
3
2 3 4
1
1
2
2 6
2
5 6

Output:

YES
NO
YES
NO