764 B | 764 chars
n = 0
check = [0]*11
ret = []
def g():
global n,check,ret
s = "1"
c = "1"
cnt = 0
for i in range(1,n):
if check[i] == 0:
s += "+"
c += "+"
cnt +=1
elif check[i] == 1:
s += "-"
c += "-"
cnt +=1
else:
c +=" "
s += str(i+1)
c += str(i+1)
if eval(s) == 0:
ret.append(c)
def f(k):
global n
if(n-1 == k):
for i in range(3):
check[k] = i
g()
else:
for i in range(3):
check[k] = i
f(k+1)
for i in range(int(input())):
n = int(input())
M = 0
ret = []
f(1)
ret.sort()
for i in ret:
print(i)
print()