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 $A_{2,1}=70$.