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#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <cstring>
using namespace std;
ifstream fin("cmcm.in");
ofstream fout("cmcm.out");
const int Nmax = 600, inf = 0x3f3f3f3f;
vector <int> g[Nmax + 5];
queue <int> q;
int n, l, r, m, start, stop, node, ans, flow;
int c[Nmax + 5][Nmax + 5], f[Nmax + 5][Nmax + 5], cost[Nmax + 5][Nmax + 5], d[Nmax + 5], tt[Nmax + 5], edge[Nmax + 5][Nmax + 5];
bool inq[Nmax + 5];
void Read(){
fin >> l >> r >> m;
start = 0;
stop = l + r + 1;
for (int i = 1; i <= m; i++){
int x, y, z;
fin >> x >> y >> z;
y += l;
edge[x][y] = i;
g[x].push_back(y);
g[y].push_back(x);
c[x][y] = 1;
cost[x][y] = z;
cost[y][x] = -z;
}
for (int i = 1; i <= l; i++){
g[start].push_back(i);
c[start][i] = 1;
}
for (int i = 1; i <= r; i++){
g[i + l].push_back(stop);
c[i + l][stop] = 1;
}
n = l + r + 1;
}
int BellmanFord(){
memset(d, inf, sizeof d);
memset(inq, 0, sizeof inq);
memset(tt, 0, sizeof tt);
q.push(start);
d[start] = 0;
inq[start] = 1;
while (!q.empty()){
node = q.front();
q.pop();
inq[node] = 0;
for (auto other : g[node])
if (d[other] > d[node] + cost[node][other] && c[node][other] - f[node][other] > 0){
d[other] = d[node] + cost[node][other];
tt[other] = node;
if (!inq[other]){
q.push(other);
inq[other] = 1;
}
}
}
return d[stop] != inf;
}
void Solve(){
while (BellmanFord()){
int addmin = inf;
for (int i = stop; i != start; i = tt[i])
addmin = min(addmin, c[tt[i]][i] - f[tt[i]][i]);
for (int i = stop; i != start; i = tt[i]){
f[tt[i]][i] += addmin;
f[i][tt[i]] -= addmin;
ans += addmin * cost[tt[i]][i];
}
}
}
void Print(){
for (int i = 1; i <= l; i++)
flow += f[start][i];
fout << flow << ' ' << ans << '\n';
for (int i = 1; i <= l; i++)
for (int j = 1; j <= r; j++)
if (f[i][j + l])
fout << edge[i][j + l] << ' ';
fout << '\n';
}
int main(){
Read();
Solve();
Print();
return 0;
}