function HJ1(str){
var result = ''
for(var i = 0;i<str.length;i++){
if(str[i]==' '){
result = str.substring(i+1,str.length)
}else if(i==str.length-1&&result==''){
result = str
}
}
return result
}
var str = readline()
console.log(HJ1(str).length)
