for i in range(1000, 9999):
q = i // 1000 % 10
b = i // 100 % 10
s = i // 10 % 10
g = i // 1 % 10
if q + b + s + g == 10:
print(i)
/**************************************************************
Problem: 1863
User: admin
Language: Python
Result: Accepted
Time:59 ms
Memory:34244 kb
****************************************************************/