#include<iostream>
#include<fstream>
using namespace std;
ifstream fi("input.inp");
ofstream fo("output.out");

struct khach{
    int len;
    int xuong;
};

khach *a;
int n, k, mexit = 0;

void nhap(){
    fi >> n >> k;
    a = new khach[n];
    for(int  i = 0; i < n; i++) fi >> a[i].len >> a[i].xuong;
}

void xuly(){
    int chua_soat = 0;
    for(int i = 0; i < n; i++){
        if(chua_soat >= a[i].xuong){
            mexit = mexit + a[i].xuong;
            chua_soat = chua_soat - a[i].xuong;
        }
        else{
            mexit = mexit + chua_soat;
            chua_soat = 0;
        }
        if(i % k == 0){
            chua_soat = 0;
        }
        else{
            chua_soat = chua_soat + a[i].len;
        }
    }
}

int main(){
    nhap();
    xuly();
    fo <<0 << " " <<mexit;
    delete []a;
    fi.close();
    fo.close();
}