#!/bin/bash

read s

c=`echo $s | awk '{match($0,/c+/); print substr($0, RSTART, RLENGTH);}'`
w=`echo $s | awk '{match($0,/w+/); print substr($0, RSTART, RLENGTH);}'`

if [ `expr ${#c} - 1` -le ${#w} ]; then
	echo `expr ${#c} - 1`
else
	echo ${#w}
fi