#include <stdio.h>

int output(int number1, int number2, int number3)
{
   printf("809*%ld = 800*%ld + 9*%ld + 1\n",number1, number2, number3);
    //printf("809*%ld=%ld\n",number1, 809*number1);
   return 0;
}
int main()
{
   /*809*??=800*??+9*??+1,??为两位数,8*??为两位数,9*??为三位数,求??的值及809*??的值*/
   int number1, number2, number3;
   for (number1=10; number1<100; ++number1)
   {
    for (number2=10; number2<100; ++number2)
    {
     for (number3=100; number3<1000; ++number3)
      {
       if (809*number1 == 800*number2 + 9*number3 + 1)
       output(number1, number2, number3);
      }
    }
   }
   return 0;
}

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