def timeConversion(s):
    # Write your code here
    hh = int(s[0:2])
    mm = s[3:5] 
    ss = s[6:8]
    period= s[8:9]
    if period == "P" and hh<12:
        hh +=12
    elif period =="A" and hh == 12 :
        hh = 0
    hour = f"{hh:02d}" if hh<10 else str(hh)
    return f"{hour}:{mm}:{ss}"

string timeConversion(string s) {
    int hh = stoi(s.substr(0, 2));
    string mm = s.substr(3, 2);
    string ss = s.substr(6, 2);
    string time,hour;
        
    if (s.substr(8, 1) == "P") {  
        hour = (hh!=12 ? to_string(hh+=12) : to_string(hh));     
        time = hour + ":" + mm + ":" + ss;
    }
    else {
        if(hh==12)
            hour = "00";
        else
            hour = (hh<10 ? "0":"")+ to_string(hh);
        time = hour + ":" + mm + ":" + ss;
    }
    return time;
}

public static String timeConversion(String s) {
        boolean isAM = false;
        
        if (s.endsWith("AM")) {
            isAM = true;
        }
        
        s = s.substring(0, s.length() - 2);
        int hour = Integer.valueOf(s.substring(0,2));
        
        if (isAM && hour == 12) {
            return "00".concat(s.substring(2));
        } else if (!isAM && hour != 12) {
            return Integer.toString(hour + 12).concat(s.substring(2));
        } else {
            return s;
        }
    }

# Write your code here
    s = s.split(":")
    hours = int(s[0])
    minutes = int(s[1])
    seconds = int(s[2][:2])
    am_pm = s[2][2:]
    
    if am_pm == "PM":
        if hours >= 1:
            hours = hours + 12
    elif am_pm == "AM":
        if hours >= 12:
            hours = hours - 12
    hours = "{:02}".format(hours)
    minutes = "{:02}".format(minutes)
    seconds = "{:02}".format(seconds)
    return f"{hours}:{minutes}:{seconds}"