Problem: Example

Input

2 1
WE


Output

1 2

Solution (in CPP):

Solution:
#include "bits/stdc++.h"

#define REP(i,n) for(ll i=0;i<n;++i)
#define RREP(i,n) for(ll i=n-1;i>=0;--i)
#define FOR(i,m,n) for(ll i=m;i<n;++i)
#define RFOR(i,m,n) for(ll i=n-1;i>=m;--i)
#define ALL(v) (v).begin(),(v).end()
#define PB(a) push_back(a)
#define UNIQUE(v) v.erase(unique(ALL(v)),v.end());
#define DUMP(v) REP(aa, (v).size()) { cout << v[a]; if (a != v.size() - 1)cout << " "; else cout << endl; }
#define INF 1000000001ll
#define MOD 1000000007ll
#define EPS 1e-9

const int dx[8] = { 1,1,0,-1,-1,-1,0,1 };
const int dy[8] = { 0,1,1,1,0,-1,-1,-1 };


using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
ll max(ll a, int b) { return max(a, ll(b)); }
ll max(int a, ll b) { return max(ll(a), b); }
ll min(ll a, int b) { return min(a, ll(b)); }
ll min(int a, ll b) { return min(ll(a), b); }
///(?´????????`)(?´????????`)(?´????????`)(?´????????`)(?´????????`)(?´????????`)///
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	int n, m;
	cin >> n >> m;
	vector<string> v(m);
	REP(i, m)cin >> v[i];
	vi E(n + 1, 0), W(n + 1, 0);
	REP(i, m) {
		REP(j, n) {
			if (v[i][j] == 'E')E[j+1]++;
			else W[j]++;
		}
	}
	REP(i, n) {
		E[i + 1] += E[i];
	}
	RREP(i, n) {
		W[i] += W[i + 1];
	}
	int ans, cmin = INF;
	REP(i, n + 1) {
		if (cmin > abs(E[i] + W[i])) {
			ans = i;
			cmin = abs(E[i] + W[i]);
		}
	}
	cout << ans <<" "<<ans+1<< endl;
	return 0;
}