In DES, the S$-$boxes are substitutions based on a table of $4$ rows and $16$

columns. Suppose that block Bj is $6$ bits b$1$b$2$b$3$b$4$b$5$b$6,$ from that form a $2-$

bit binary number for choosing a row value r and form a $4-$bit binary

number for choosing a column c$.$ Find out the row and column value of

$010011$ in decimal.