POJ 1543 Perfect Cubes

#include<cstdio>
#include<cstring>
int main()
{
   
    int n,i,cube[110],a,b,c,d;
    while(scanf("%d",&n)!=EOF)
    {
        for(i=1;i<=n;i++)
        cube[i]=i*i*i;
        for(a=6;a<=n;a++)
        {
            for(b=2;b<=a;b++)
            {
                for(c=b+1;c<=a;c++)
                {
                    for(d=c+1;d<=a;d++)
                    {
                        if(cube[a]==cube[b]+cube[c]+cube[d])
                            printf("Cube = %d, Triple = (%d,%d,%d)\n",a,b,c,d);
                    }
                }
            }
        }
    }
    return 0;
}