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# include "stdio.h"
void main()
{
double num;
int n,num1;
scanf("%lf",&num);
num1=(int)num;
for(n=0;;n++)
{
if(num1==0) {printf("%d\n",n);break;}
else num1/=10;
}
}
# include "stdio.h"
int main()
{
double num;
int n,num1;
scanf("%lf",&num);
num1=(int)num;
for(n=0;;n++)
{
if(num1==0) {printf("%d\n",n);break;}
else num1/=10;
}
return 0;
}