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Score : $100$ points

### Problem Statement

Given integers $R$, $C$, and a $2 \times 2$ matrix $A$, print $A_{R,C}$.

### Constraints

• All values in input are integers.
• $1 \le R,C \le 2$
• $0 \le A_{i,j} \le 100$

### Input

Input is given from Standard Input in the following format:

$R$ $C$
$A_{1,1}$ $A_{1,2}$
$A_{2,1}$ $A_{2,2}$


### Output

Print the answer as an integer.

### Sample Input 1

1 2
1 0
0 1


### Sample Output 1

0


We have $A_{1,2}=0$.

### Sample Input 2

2 2
1 2
3 4


### Sample Output 2

4


We have $A_{2,2}=4$.

### Sample Input 3

2 1
90 80
70 60


### Sample Output 3

70


We have $A_{2,1}=70$.