#include <iostream>
#include <string.h>
#include <stdio.h>
#include <cstdio>

using namespace std;

int main()
{
  char str [200];
  printf ("string? ");
  fgets (str, 201, stdin);
  int s, max;
  s=0; max=0;
  for (int i=0; ((i<200) && str[i]!=0); i++)
   if (str[i]!=' ') {s++;}
   else if (max<s) {max=s; s=0;}
    else {s=0;}
   printf ("%d", max);
   getchar ();
   return 0;
}