#define maxstrlen
typedef unsigned char sstring[maxstrlen+1];
int main(){
          sstring s,t;
          s="aaaaab";
          t="aab";
          int i,j;
          i=1;j=1
          while(i<s[0]&&j<t[0]){
                 while(s[i]==t[j]&&s[t[0]]==t[t[0]]){
                  if(s[i]==t[j]){i++;j++;}
          else {j=1;i=i-j+2;}
               }
              i++;
                    
                   }
               if(j>t[0]) return i-t[0];
 }