tasks = []
x = []
for value in range(21, 24):
    del x[:]
    x.append(value)
    task = {"yy": x.copy(),
            "xx": x.copy()}
    tasks.append(task)

x = ["123"]
task = {"yy": x, "xx": x}
tasks = []
tasks.append(task)

for task in tasks:
    print(task)
print("xxxxxxxxxxx")
print(tasks)
