#include <fstream>
 
std::ifstream f("secv2.in");
std::ofstream g("secv2.out");
 
const int NMAX = 50'005;
int n,k,v[NMAX],s[NMAX],minn = (1 << 30),begin,I,J,sol = -(1 << 30);
 
int main(){
    
    f >> n >> k;
    
    for(int i = 1;i <= n;++i){
        f >> v[i];
        s[i] = s[i - 1] + v[i];
    }
    
    for(int i = k;i <= n;++i){
        
        if(s[i - k] < minn){
            minn = s[i - k];
            begin = i - k + 1;
        }
        
        if(s[i] - minn > sol){
            sol = s[i] - minn;
            I = begin;
            J = i;
        }
    }
    
    g << I << ' ' << J << ' ' << sol;
    
    return 0;
}