Input
The first line contains the number of rows (1<=N<=20) and the number of columns (M 1<=M<=20) of the two-dimensional array separated by a space.
Next comes N lines with M elements per line - the elements of a two-dimensional array. All elements of a two-dimensional array modulo does not exceed 50.
Then, separated by a space, there are two numbers k and h (1<=k<=N, 1<=h<=M)
Imprint
Display the element located at position h in string k (assuming that the numbering of array elements starts from 1, i.e. for the upper left element of the array, it is considered that k=1 and h=1).