Detect Armstrong number in 3 digits from 100 to 999 using C

/*WAP to detect armstrong number in 3 Digits from 100 to 999*/
#include<stdio.h>
void main()
{
  int i,j,k,number,sumcube;
  clrscr();
  i=1;
  do
     {
      j=0;
     do
       {
       k=0;
       do
         {
          number=i*100+j*10+k;
          sumcube=(i*i*i)+(j*j*j)+(k*k*k);
          if(number==sumcube)
          printf("%d\n",number);
          ++k;
         }
        while(k<=9);
        ++j;
       }
      while(j<=9);
      i++;
     }
    while(i<=9);
 getch();
}

Output

13
370
371
407

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