Finding digit number of a number

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

#include<stdio.h> int main() { long long int a,b,sum,temp,count=0,count_1=1; while( (scanf("%lld %lld",&a,&b))!=EOF) { if(a<=1000000&&b<=1000000) { sum=a+b; temp=sum; while(temp!=0) { sum/=10; temp=sum; count++; } printf("%lld\n",count); } count=0; if(count_1>200) break; count_1++; } return 0; }