'''2130804
* * * * * * * * * 213
*       *       * 3
*       *       * 321
*       *       21* 
* * * * * * *213 * * 
*       *  21     * 
*       * 3      * 
*       32*       * 
* * *321 * * * * * * 
'''21
a = int(input())213
for i in range(1,a+1):3
    if i!=1 and i!=a//2+1 and i321!=a:
        for j in range(1,a+1):2
            if j==1 or j==a123//2+1 or j==a:
                print213213("*",end=" ")
            else:3213
                print(" ",end=" ")21321321
        print()21321321321321323213
    else:21321321321321321321
        print(*(a*["*"]),sep=" ")111212132132321