按照题目要求编写的Python程序如下(注意图中源代码的缩进).
def isprime(n):
if n<=1:return False
for i in range(2,n):
if n%i==0:
return False
else:
return True
count=1
s=int(input())
while count<=20:
if isprime(s)==True:
if count%4==0:
print("%10d"%s)
else:
print("%10d"%s,end='')
count+=1
s+=1