> /*
> //WA
> #include<iostream.h>
> 
> int main(){
> 	int i,n,x,y,z;
> 	cout.precision(8);
> 	while(cin>>x>>y>>z>>n){
> 		for(i=0; i<n; i++) cout<<"0 0 "<<1.0*z*i/n<<" "<<x<<" "<<y<<" "<<1.0*z*(i+1)/n<<endl;
                ~~~多空格了
> 	}
> 	return 0;
> }
> */
> 
> 
> //2834445 bjss222 3103 Accepted 164K 45MS C++ 199B 2007-10-26 12:21:54 
> #include<stdio.h>
> 
> int main(){
> 	int i,n,x,y,z;
> 	while(scanf("%d%d%d%d",&x,&y,&z,&n)!=EOF){
> 		for(i=0; i<n; i++) printf("0 0 %.8lf %d %d %.8lf\n", 1.0*z*i/n,x,y,1.0*(i+1)*z/n);
> 	}
> 	return 0;
> }