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Explore Stack Internal#Python 3, 60
for x in input().split():print(-eval('-'.join(x))%10,end='') Input and output exactly as specified, although it doesn't print a trailing newline. Two interesting tricks here: 1) replacing two calls to int() with one call to eval(), and 2) using join() to get a-b, then negating it for b-a as required. Fortunately Python's modulo operator gives positive values even if the first argument is negative!
#Python 3, 60
for x in input().split():print(-eval('-'.join(x))%10,end='') Input and output exactly as specified, although it doesn't print a trailing newline. Two interesting tricks here: 1) replacing two calls to int() with one call to eval(), and 2) using join() to get a-b, then negating it for b-a as required. Fortunately Python's modulo operator gives positive values even if the first argument is negative!
for x in input().split():print(-eval('-'.join(x))%10,end='') Input and output exactly as specified, although it doesn't print a trailing newline. Two interesting tricks here: 1) replacing two calls to int() with one call to eval(), and 2) using join() to get a-b, then negating it for b-a as required. Fortunately Python's modulo operator gives positive values even if the first argument is negative!
#Python 3, 60
for x in input().split():print(-eval('-'.join(x))%10,end='') Input and output exactly as specified, although it doesn't print a trailing newline. Two interesting tricks here: 1) replacing two calls to int() with one call to eval(), and 2) using join() to get a-b, then negating it for b-a as required. Fortunately Python's modulo operator gives positive values even if the first argument is negative!