ALOGRITHAM
STEP 1: Start
STEP 2: Input i
STEP 3: If (i >= 0 && i <= 9)
Print ‘A single number’
Else If (i >= 10 && i <= 99)
Print ‘A double number’
Else If (i >= 100 && i <= 999)
Print ‘A triple number’
Else
Print ‘It is not a correct option’
STEP 4: STOP