#include <bits/stdc++.h>
using namespace std;
const int MAXN = 100100, SQRT = 320, MAXM = 13;
int N, M, Q;
pair<int, int> up[MAXN][MAXM];
pair<int, int> jump[MAXN][MAXM];
char grid[MAXN][MAXM];
bool bounded(int x, int y) { return 1 <= x && x <= N && 1 <= y && y <= M; }
bool bounded(pair<int, int> p) { return bounded(p.first, p.second); }
pair<int, int> getup(int x, int y) {
  pair<int, int> &ref = up[x][y];
  if (ref.first != -2) {
    return ref;
  }
  if (!bounded(x, y)) {
    return ref = pair<int, int>(x, y);
  }
  if (grid[x][y] == '^') {
    return ref = pair<int, int>(x - 1, y);
  } else if (grid[x][y] == '<') {
    return ref = (grid[x][y - 1] == '>' ? pair<int, int>(-1, -1)
                                        : getup(x, y - 1));
  } else {
    return ref = (grid[x][y + 1] == '<' ? pair<int, int>(-1, -1)
                                        : getup(x, y + 1));
  }
}
void calcjump(int i) {
  if (i % SQRT == 1) {
    copy_n(up[i] + 1, M, jump[i] + 1);
  } else {
    for (int j = 1; j <= M; j++) {
      pair<int, int> p = up[i][j];
      jump[i][j] = bounded(p) ? jump[p.first][p.second] : p;
    }
  }
}
int main() {
  if (fopen("input.txt", "r")) {
    freopen("input.txt", "r", stdin);
  }
  ios_base::sync_with_stdio(false);
  scanf("%d %d %d\n", &N, &M, &Q);
  for (int i = 1; i <= N; i++) {
    gets(grid[i] + 1);
    fill_n(up[i], M + 2, pair<int, int>(-2, -2));
  }
  for (int i = 0; i <= N; i++) {
    for (int j = 0; j <= M + 1; j++) {
      getup(i, j);
    }
  }
  for (int i = 1; i <= N; i++) {
    calcjump(i);
  }
  char ch;
  for (int x, y; Q--;) {
    scanf("%c %d %d", &ch, &x, &y);
    if (ch == 'A') {
      pair<int, int> p(x, y);
      while (bounded(p)) {
        p = jump[p.first][p.second];
      }
      printf("%d %d\n", p.first, p.second);
    } else {
      scanf(" %c", &ch);
      grid[x][y] = ch;
      fill_n(up[x] + 1, M, pair<int, int>(-2, -2));
      for (int j = 1; j <= M; j++) {
        getup(x, j);
      }
      for (calcjump(x++); x <= N && x % SQRT != 1; x++) {
        calcjump(x);
      }
    }
    getchar();
  }
}
