read the volume of three objects and sort
them in increasing order ,
then print their values ?
Algorithm of sorting exactly three object, a,b,c is like comparing masses of three objects on an ungraduated balance.
if a>b then
_if b>c then
__a>b>c
_else if a>c then
__a>c>b
__else
__c>a>b
else if a>c then
__b>a>c
_else if b>c then
___b>c>a
__else
___c>b>a