answer

//code by awaplay
#include <stdio.h>
int main(){
short m=0,n=0;
int data[101][101]={0},ntotal=0;
scanf("%hd %hd",&m,&n);
for(int i=0;i<=n-1;i++){
for(int j=0;j<=m-1;j++){
scanf("%d",&data[m][n]);
if(i0||j0||in-1||jm-1)ntotal+=data[m][n];
}
}
printf("%d",ntotal);
}