Kaprekar 6174
Enter 4 digits (leading zeros allowed). Output is the minimal trace:
DESC - ASC = RESULT
.
Input
Random
4 digits (0-9)
Clear
Constraint: not all 4 digits identical (e.g. 0000, 1111) because it collapses to 0000 and never reaches 6174.
Type a 4-digit number to generate the trace.