Problem: Example

Input

2 1
WE


Output

1 2

Solution (in CPP):

Solution:
/* template.cpp {{{ */
#include <bits/stdc++.h>
using namespace std;
#define get_macro(a, b, c, d, name, ...) name
#define rep(...) get_macro(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep(...) get_macro(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__)
#define rep1(n) rep2(i_, n)
#define rep2(i, n) rep3(i, 0, n)
#define rep3(i, a, b) rep4(i, a, b, 1)
#define rep4(i, a, b, s) for (ll i = (a); i < (ll)(b); i += (ll)(s))
#define rrep1(n) rrep2(i_, n)
#define rrep2(i, n) rrep3(i, 0, n)
#define rrep3(i, a, b) rrep4(i, a, b, 1)
#define rrep4(i, a, b, s) for (ll i = (ll)(b) - 1; i >= (ll)(a); i -= (ll)(s))
#define each(x, c) for (auto &&x : c)
#define fs first
#define sc second
#define all(c) begin(c), end(c)
using ui = unsigned;
using ll = long long;
using ul = unsigned long long;
using ld = long double;
const int inf = 1e9 + 10;
const ll inf_ll = 1e18 + 10;
const ll mod = 1e9 + 7;
const ll mod9 = 1e9 + 9;
const int dx[]{-1, 0, 1, 0, -1, 1, 1, -1};
const int dy[]{0, -1, 0, 1, -1, -1, 1, 1};
template<class T, class U> void chmin(T &x, const U &y){ x = min<T>(x, y); }
template<class T, class U> void chmax(T &x, const U &y){ x = max<T>(x, y); }
struct prepare_ { prepare_(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(12); } } prepare__;
/* }}} */

int n, m;
string s[100];
int a[10000], b[10000];

int main(){
  cin >> m >> n;
  rep(i, n) cin >> s[i];
  rep(i, n) rep(j, m){
    if (s[i][j] == 'W') a[j]++;
    else b[j]++;
  }
  tuple<int, int, int> res{inf, inf, inf};
  int e = 0;
  rep(i, m) e += a[i];
  rep(i, m){
    chmin(res, make_tuple(e, i, i + 1));
    e -= a[i];
    e += b[i];
    chmin(res, make_tuple(e, i + 1, i + 2));
  }
  int x, y, z;
  tie(x, y, z) = res;
  cout << y << " " << z << endl;
}