/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{

    public static int hour2minutes(String fullhour)
    {
    	String[] parts = fullhour.split(":");
    
        int hour = Integer.parseInt(parts[0]);
        int min = Integer.parseInt(parts[1]);
    
        return (hour* 60) + min; //Pega o total
    }

	public static void main (String[] args) throws java.lang.Exception
	{
		System.out.println(hour2minutes("12:39"));
		System.out.println(hour2minutes("16:20"));
		System.out.println(hour2minutes("23:59"));
	}
}