The F$1$ value obtained from the following sequence will be written to the ports at $1\mathrm{.}5$ second intervals, the $F2$ value at $2$ second intervals and the $F$ value at $2\mathrm{.}5$ second intervals. Perform these operations using PIC $16$F$877$A$.$

string length $=4$

F$1=$ Sum of numbers outside column A$1$ and row B$1$

F$2=$ Sum of numbers outside column A$2$ and row B$2$

$\backslash$table$[[,$A$1,$A$2,$A$3,$A$4],[$B$1,3,4,1,3],[$B$2,2,5,3,5],[$B$3,1,3,9,2],[84,2,6,5,4]]$