#include <stdio.h>

int main()
{
    int x,y,l;
    int instruction=0;
    
    if(x>=0&&y>=0)/*第1象限*/{
        if(x<l){
            instruction++;
        }
        else{
            if(x%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        if(y<l){
            instruction++;
        }
        else{
            if(y%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        instruction++;
    }
    
    else if(x<0&&y>=0)/*第2象限*/{
        if(x<l){
            instruction++;
        }
        else{
            if(x%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        if(y<l){
            instruction++;
        }
        else{
            if(y%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        instruction+=2;

    }
    else if(x<0&&y<0)/*第3象限*/{
         if(x<l){
            instruction++;
        }
        else{
            if(x%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        if(y<l){
            instruction++;
        }
        else{
            if(y%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        instruction+=2;
    }
    else/*第4象限*/{
         if(x<l){
            instruction++;
        }
        else{
            if(x%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        if(y<l){
            instruction++;
        }
        else{
            if(y%l==0){
                instruction+=x/l;
            }
            else{
                instruction+=x/l+1;
            }
        }
        instruction++;   
    }
    
    return 0;
}