help, python

Question

for i in range (6, -1, -3):
for j in range (1,4):
print(f'{i+j}', end='')

print()
I need to change code using while

Answer 1

#code in while loop.

i=6
while i>-1:
j=1
while j<4:
print(f'{I+j}',end='')
j+=1
i-=3
print()

Answer 2

Thanks, so much