#include<bits/stdc++.h>
using namespace std;
string s;
int cnt;
int main()
{
	cin>>s;
	if(s[0]>'1') cnt++;
	if(s[1]=='0'&&s[0]=='0') cnt++;
	if(s[0]=='1'&&s[1]>'2') cnt++;
	if(s[3]>'3'&&(s[0]!='0'||s[1]!='2')||s[3]>='3'&&s[0]=='0'&&s[1]=='2') cnt++;
	if(s[4]>'8'&&s[0]=='0'&&s[1]=='2'&&s[3]=='2'||s[4]>'0'&&s[3]=='3'&&(s[1]=='4'||s[1]=='6'||s[1]=='9'||s[1]=='1'&&s[0]=='1')||s[4]>'1'&&s[3]=='3'&&(s[1]=='1'||s[1]=='3'||s[1]=='5'||s[1]=='7'||s[1]=='8'||s[1]=='0'&&s[0]=='1'||s[1]=='2'&&s[0]=='1')) cnt++;
	cout<<cnt;
	return 0;
}