#include
#include
using namespace std;
int a,b,c;
int p;
int number[105][6];
int main(){
cin>>a>>b>>c;
cin>>p;
for(int i=0;i<p;i++){
cin>>number[i][0]>>number[i][1]>>number[i][2]>>number[i][3]>>number[i][4]>>number[i][5];
}
int count=abc;
int n=0;
for(int i=0;i<p;i++){
int x1=min(number[i][0],number[i][3]);
int y1=max(number[i][0],number[i][3]);
int x2=min(number[i][1],number[i][4]);
int y2=max(number[i][1],number[i][4]);
int x3=min(number[i][2],number[i][5]);
int y3=max(number[i][2],number[i][5]);
for(int x=x1;x<=y1;x++){
for(int y=x2;y<=y2;y++){
for(int z=x3;z<=y3;z++){
if(x>=x1&&x<=y1&&y<=y2&&y>=x2&&z>=x3&&z<=y3){
n++;
}
}
}
}
}
cout<<count-n;
return 0;
}```cpp
