7189번 - Walk 스페셜 저지다국어

문제

Mart takes a walk every day and his sports watch registers the duration and speed of each segment of uniform movement of his walk. After the walk, Mart can download a log file to his computer. Find the total distance and the average speed of the walk based on this file.

입력

The first line of input contains an integer $N$ (1ドル ≤ N ≤ 10,000円$) and each of the subsequent $N$ lines contains the following (space-separated) data about one segment:

• the duration of the segment in minutes and seconds in the form $M$m$S$s, where $M$ is the integer number of minutes (and the minutes part is omitted for times less than a minute) and $S$ is the integer number of seconds (which never exceeds 59);
• the word kiirusega;
• the speed on this segment expressed as minutes and seconds per kilometre in the form $M$m$S$s/km, where $M$ is the integer number of minutes and $S$ is the integer number of seconds (which never exceeds 59ドル$), and you may assume Mart needs at least a minute, but less than an hour, per kilometre.

You may also assume that the total of the durations of all segments does not exceed 24ドル$ hours.

출력

The output should contain two lines

• on the first line the total distance of the walk, rounded to metres, in the form $L$m, where $L$ is the integer number of metres;
• on the second line the average speed in the form $V$km/h, where $V$ is a real number; the output value must not differ from the correct answer by more than 0ドル.001$.

제한

힌트