C :

#include<stdio.h>
struct box
{
	int length;
	int width;
	int height;
};
int main()
{
	int i;
	int v[3];
struct box b[3];
for(i=0;i<3;i++)
{
	scanf("%d %d %d",&b[i].length,&b[i].width,&b[i].height);
	v[i]=b[i].length*b[i].width*b[i].height;
}
for(i=0;i<3;i++)
{
	printf("%d\n",v[i]);
}
return 0;
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int a[20005],b[20005],ana=0,sum=0,m,sum1=0;
struct ly
{
	int x,y,z;
}d[10000];

int main(){
 
   for(int i=1;i<=3;i++)
   cin>>d[i].x>>d[i].y>>d[i].z;
   for(int i=1;i<=3;i++)
   cout<<d[i].x*d[i].y*d[i].z<<endl;
  
       
    
       
    return 0;
}