int is( int number ){
int sum=0,ret;
while(number){
int d=number%10;
sum+=d;
number/=10;
}
if(sum==5) ret=1;
else ret=0;
return ret;
}void count_sum( int a, int b ){
int cnt=0,sum=0;
for(int i=a;i<=b;i++){
if(is(i)){
cnt++;
sum+=i;
}
}
printf("count = %d, sum = %d\n",cnt,sum);
}
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