D={"a":[ 1,2,3,4], "b":[2,3,4,5], "c":[4,3,2,3], "d":[ 1, 1, 1,2]}
S=[0]*4
for i in range(4):
for j in D:
S[i]+=D[j][i]
print(S)
运行该程序,输出结果为 ( )