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list4 = [4, 44, 444, 4444, 44444]
list7 = [7, 77, 777, 7777, 77777]
list10 = [10, 100, 1000, 10000, 100000]
index = -1
 
def equals(x, y):
    for i in range(index, -1, -1):
        mod1 = x % list10[i]
        mod2 = y % list10[i]
        if ((mod1 > list4[i]) and (mod1 <= list7[i])):
            group1 = 2
        else:
            group1 = 1 
        if ((mod2 >= list4[i]) and (mod2 < list7[i])):
            group2 = 1
        else:
            group2 = 2
        if (group1 == group2):
            return false
    return true
    
t = int(input(''))
for i in range(t):
        n = int(input(''))
        result = 0
        for j in range(1, n+1):
             for k in range(j, n+1):
                 if equals(j, k):
                     result += 1
        print(result)      

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• # 2:   hide show   clone   input   105 days 0 hours ago    Runtime error

  result: Runtime error     time: 0.02s    memory: 5868 kB     signal: -1

  input:

  3
  3
  10
  100

  output: no
  stderr:

  Traceback (most recent call last):
    File "prog.py", line 28, in <module>
      if equals(j, k):
    File "prog.py", line 20, in equals
      return true
  NameError: global name 'true' is not defined
  

• # 1:   hide show   clone   input   105 days 0 hours ago    Runtime error

  result: Runtime error     time: 0.02s    memory: 5872 kB     signal: -1

  input: no
  output: no
  stderr:

  Traceback (most recent call last):
    File "prog.py", line 22, in <module>
      t = int(input(''))
  EOFError: EOF when reading a line