#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define int long long
#define ll long long
#define ull unsigned long long
#define lb lower_bound
#define ub upper_bound
#define IOS ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
int gcd(int a, int b){
return __gcd(a, b);
}
int lcm(int a, int b){
return a / gcd(a, b) * b;
}
int dx[] = {-1, 1, 0, 0};
int dy[] = {0, 0, -1, 1};
void solve(){
int n, m, k;
cin >> n >> m >> k;
if(m == 1){
cout << "K1" << endl;
return;
}
string arr[m + 5];
int dis1[m + 5], dis2[m + 5];
memset(dis1, -1, sizeof(dis1));
memset(dis2, -1, sizeof(dis2));
queue<int> q1, q2;
vector<int> vt[m + 5];
for (int i = 1; i <= k; i++ ){
string s;
cin >> s;
int a = s[0] - '0', b = s[2] - '0';
char c = s[1];
if(c == '<'){
q1.push(a);
q2.push(b);
dis1[a] = 0;
dis2[b] = 0;
arr[a] = "K1";
arr[b] = "K2";
}
else{
vt[a].push_back(b);
vt[b].push_back(a);
}
}
while(q1.size()){
int x = q1.front();
q1.pop();
for (int i : vt[x]){
if(dis1[i] == -1){
dis1[i] = dis1[x] + 1;
arr[i] = "K1";
q1.push(i);
}
}
}
while(q2.size()){
int x = q2.front();
q2.pop();
for (int i : vt[x]){
if(dis2[i] == -1){
dis2[i] = dis2[x] + 1;
arr[i] = "K2";
q2.push(i);
}
}
}
for (int i = 1; i <= m; i++ ){
if(dis1[i] == -1 && dis2[i] == -1)arr[i] = "?";
}
for (int i = 1; i <= m; i++ ){
cout << arr[i] << endl;
}
}
signed main(){
IOS;
int t = 1;
//cin >> t;
while (t--){
solve();
}
}
