#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char*mmap();
#define rd(v) long v=0;{int _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}

#define wbuf_end (wbuf+sizeof wbuf)
#define wt(v) {long _z=v;do*--wp=_z%10+48;while(_z/=10);}

#define rep(v,e) for(long v=0;v<e;++v)
#define rep3(v,s,e) for(long v=s;v<e;++v)
#define min(a,b) (a<=b?a:b)
#define max(a,b) (a>=b?a:b)

short a[1001][1000];

main(){
	char*rp=mmap(0l,1l<<25,1,2,0,0ll);
	rd(n);
	long w=n*n*(n+1)>>1;
	rep(y,n){
		rep(x,n){
			rd(t);
			a[t][max(0,y-x)]++;
			a[t][min(n-1,y+x)]++;
			w-=(y-x)-max(0,y-x);
		}
	}

	rep3(t,1,n+1){
		long y=0,s=n;
		for(;s>0;s-=a[t][y++]){
			w-=s;
		}
	}

	char wbuf[64],*wp=wbuf_end;
	*--wp=10;
	wt(w);
	write(1,wp,wbuf_end-wp);
	_exit(0);
}