Enter -> 10, 1000, 100000, 1.0e+10
Data echo ->        10      1000    100000 1.00000000000000e+10
This loop works
Case checks
Success is assurred
i =          5         4         3
j =       1000       999       998
k =     100001    100000     99999
   case and for work !!
Enter a character here -> <- there it is
60 statements executed in 0.08 seconds cpu time.