# include <stdio.h>
int myStrlen(char s[]){
int i;
for(i=0; s[i]!='\0'; i++)
;
return i;
}
int main(){
int len;
char s[100];
len = myStrlen(s);
return 0;
}
IyBpbmNsdWRlIDxzdGRpby5oPgoKaW50IG15U3RybGVuKGNoYXIgc1tdKXsKaW50IGk7CmZvcihpPTA7IHNbaV0hPSdcMCc7IGkrKykKOwpyZXR1cm4gaTsKfQoKaW50IG1haW4oKXsKICAgIGludCBsZW47CiAgICBjaGFyIHNbMTAwXTsKICAgIHNjYW5mKCIlcyIscyk7CiAgICBsZW4gPSBteVN0cmxlbihzKTsKICAgIHByaW50ZigiJXMgLT4gJWRcbiIscyxsZW4pOwogICAgcmV0dXJuIDA7Cn0K