def popAt(self, index):
if index >= 0 and index < len(self.Stacks):
result = self.Stacks[index].pop()
arrs = []
newIndex = index
while newIndex < len(self.Stacks):
arr = self.Stacks[newIndex].returnAsArray()
arrs.append(arr)
newIndex += 1
#print(arrs)
newIndex = 0
while newIndex < len(arrs):
j = index + 1
if j < len(arrs):
itemToAdd = arrs[j].pop(0)
# print(itemToAdd, arrs[j])
arrs[newIndex].append(itemToAdd)
stack = Stack()
stack.generateFromArray(arrs[newIndex])
self.Stacks[index] = stack
newIndex += 1
index += 1
#print (arrs)
return result
else:
raise Exception("Bad Index")
