Score : $200$ points

Problem Statement

Takahashi bought a table clock. The clock shows the time as shown in Figure 1 at $\mathrm{AB}$:$\mathrm{CD}$ in the $24$-hour system. For example, the clock in Figure 2 shows 7:58.

The format of the time is formally described as follows. Suppose that the current time is $m$ minutes past $h$ in the $24$-hour system. Here, the $24$-hour system represents the hour by an integer between $0$ and $23$ (inclusive), and the minute by an integer between $0$ and $59$ (inclusive). Let $A$ be the tens digit of $h$, $B$ be the ones digit of $h$, $C$ be the tens digit of $m$, and $D$ be the ones digit of $m$. (Here, if $h$ has only one digit, we consider that it has a leading zero; the same applies to $m$.) Then, the clock shows $A$ in its top-left, $B$ in its bottom-left, $C$ in its top-right, and $D$ in its bottom-right.

Takahashi has decided to call a time a confusing time if it satisfies the following condition:

• after swapping the top-right and bottom-left digits on the clock, it still reads a valid time in the $24$-hour system.

For example, the clock in Figure 3 shows 20:13. After swapping its top-right and bottom-left digits, it reads 21:03. Thus, 20:13 is a confusing time.

The clock now shows $H$:$M$. Find the next confusing time (including now) in the $24$-hour system.

Constraints

• $0 \leq H \leq 23$
• $0 \leq M \leq 59$
• $H$ and $M$ are integers.

Input

The input is given from Standard Input in the following format:

$H$ $M$

Output

Let $h$:$m$ be the answer, where $h$ and $m$ must satisfy $0 \leq h \leq 23$ and $0 \leq m \leq 59$. Print $h$ and $m$ in the following format:

$h$ $m$

Your answer is considered correct even if $h$ contains a leading zero to represent it as a $2$-digit integer; the same applies to $m$.

1 23

1 23

1:23 is a confusing time because, after swapping its top-right and bottom-left digits on the clock, it reads 2:13. Thus, the answer is 1:23. Your answer is considered correct even if you print 01 23 with a leading zero.

19 57

20 0

The next confusing time after 19:57 is 20:00.

20 40

21 0

Note that 24:00 is an invalid notation in the $24$-hour system.