For example 712
a = 712/100=7
b = 712%10=2
712%100=12
c = 12/10=1
or
712/10=71
71%10=1
then
b*100+c*10+a
To avoid output 700 to 007
It is not write% d% d% d
For example 712
a = 712/100=7
b = 712%10=2
712%100=12
c = 12/10=1
or
712/10=71
71%10=1
then
b*100+c*10+a
To avoid output 700 to 007
It is not write% d% d% d