View Code of Problem 2592

t=eval(input())
for i in range(t):
    x,n=input().split()
    n=int(n)
    print(' '*(n-1)+x+' '*(n-1))
    for i in range(1,n-1):
        print(' '*(n-i-1)+x+' '*(i*2-1)+x+' '*(n-i-1))
    print(x*(n*2-1))