Score : $100$ points

Problem Statement

In this problem, we use the $24$-hour clock.

Takahashi gets up exactly at the time $H_1$ : $M_1$ and goes to bed exactly at the time $H_2$ : $M_2$. (See Sample Inputs below for clarity.) He has decided to study for $K$ consecutive minutes while he is up. What is the length of the period in which he can start studying?

Constraints

• $0 \le H_1, H_2 \le 23$
• $0 \le M_1, M_2 \le 59$
• The time $H_1$ : $M_1$ comes before the time $H_2$ : $M_2$.
• $K \ge 1$
• Takahashi is up for at least $K$ minutes.
• All values in input are integers (without leading zeros).

Input

Input is given from Standard Input in the following format:

$H_1$ $M_1$ $H_2$ $M_2$ $K$

Output

Print the length of the period in which he can start studying, as an integer.

10 0 15 0 30

270

Takahashi gets up at exactly ten in the morning and goes to bed at exactly three in the afternoon. It takes $30$ minutes to do the study, so he can start it in the period between ten o'clock and half-past two. The length of this period is $270$ minutes, so we should print $270$.

10 0 12 0 120

0

Takahashi gets up at exactly ten in the morning and goes to bed at exactly noon. It takes $120$ minutes to do the study, so he has to start it at exactly ten o'clock. Thus, we should print $0$.