#include<stdio.h>
#include<string.h>
//1067
int main()
{
char a[1005];
int i;
while (scanf ("%s", &a) != EOF)
{
int length = strlen(a), max = 0, count = 0;
a[length] = '0';
for (i = 0;i < length;i ++)
{
if (a[i + 1] == a[i])
{
count ++;
}
else
{
count ++;
if (count > max)
{
max = count;
count = 0;
}
else
{
count = 0;
}
}
}
printf ("%d\n", max);
}
return 0;
}
#include<string.h>
//1067
int main()
{
char a[1005];
int i;
while (scanf ("%s", &a) != EOF)
{
int length = strlen(a), max = 0, count = 0;
a[length] = '0';
for (i = 0;i < length;i ++)
{
if (a[i + 1] == a[i])
{
count ++;
}
else
{
count ++;
if (count > max)
{
max = count;
count = 0;
}
else
{
count = 0;
}
}
}
printf ("%d\n", max);
}
return 0;
}