구구단 출력하기

// 구구단 출력

#include <stdio.h>

int main()
{
 int iNum;
 for(iNum=0; 80>=iNum; ++iNum)
 {
  if(iNum<=8)
  {
   printf("%d*%d=%d\t",(iNum/9)+2,(iNum%9)+1,((iNum/9)+2)*((iNum%9)+1));
   printf("%d*%d=%d\t",(iNum/9)+3,(iNum%9)+1,((iNum/9)+3)*((iNum%9)+1));
   printf("%d*%d=%d\t",(iNum/9)+4,(iNum%9)+1,((iNum/9)+4)*((iNum%9)+1));
   printf("\n");
  }
  else if(iNum<=17)
  {
   printf("%d*%d=%d\t",(iNum/9)+4,(iNum%9)+1,((iNum/9)+4)*((iNum%9)+1));
   printf("%d*%d=%d\t",(iNum/9)+5,(iNum%9)+1,((iNum/9)+5)*((iNum%9)+1));
   printf("%d*%d=%d\t",(iNum/9)+6,(iNum%9)+1,((iNum/9)+6)*((iNum%9)+1));
   printf("\n");
  }
  else if(iNum<=26)
  {
   printf("%d*%d=%d\t",(iNum/9)+6,(iNum%9)+1,((iNum/9)+6)*((iNum%9)+1));
   printf("%d*%d=%d\t",(iNum/9)+7,(iNum%9)+1,((iNum/9)+7)*((iNum%9)+1));
   printf("\n");
  }
 }
 return 0;
}