process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

process.stdin.on('end', function () {
    input_stdin_array = input_stdin.split("\n");
    main();    
});

function readLine() {
    return input_stdin_array[input_currentline++];
}

/////////////// ignore above this line ////////////////////

function main() {
    var n = parseInt(readLine());
    // your code goes here
    var a=createEmptyBoard(n-1);
    for(var i=0;i<n-1;i++){        
        for(var j=i;j<n-1;j++){
            a[i][j]=KnightL(n,i+1,j+1);
            a[j][i]=a[i][j];
        }
    }
    for(var i=0;i<n-1;i++){        
        console.log(a[i].join(" "));
    }

}

function createEmptyBoard(n){
    var a=[];
    for(var i=0;i<n;i++){
        a[i]=Array(n).fill(0);
    }
    return a;
}

function KnightL(n,i,j){
    var a=createEmptyBoard(n);
    var q=[];
    a[n-1][n-1]=-1;
    q.push({x:n-1,y:n-1,s:0});
    while(q.length>0){
        var c=q.shift();
        var validMoves=findValidMoves(c,n,i,j);
        for(var k=0;k<validMoves.length;k++){
            //console.log(validMoves[k]);
            if(validMoves[k].x===0 && validMoves[k].y===0){
                return c.s+1;
            }
            if(a[validMoves[k].x][validMoves[k].y]===0){
                a[validMoves[k].x][validMoves[k].y]=c.s+1;
                q.push({x:validMoves[k].x,y:validMoves[k].y,s:c.s+1})
            }
        }
    }
    return -1;
}
function findValidMoves(c,n,i,j){
    var r=[];
    if(c.x+i<n&&c.y+j<n){
        r.push({x:c.x+i,y:c.y+j})
    }
    if(c.x+i<n&&c.y-j>-1){
        r.push({x:c.x+i,y:c.y-j})
    }
    if(c.x-i>-1&&c.y+j<n){
        r.push({x:c.x-i,y:c.y+j})
    }
    if(c.x-i>-1&&c.y-j>-1){
        r.push({x:c.x-i,y:c.y-j})
    }
    if(c.x+j<n&&c.y+i<n){
        r.push({x:c.x+j,y:c.y+i})
    }
    if(c.x+j<n&&c.y-i>-1){
        r.push({x:c.x+j,y:c.y-i})
    }
    if(c.x-j>-1&&c.y+i<n){
        r.push({x:c.x-j,y:c.y+i})
    }
    if(c.x-j>-1&&c.y-i>-1){
        r.push({x:c.x-j,y:c.y-i})
    }
    return r;
}