#include #include #include #include #include #include #include using namespace std; using uint = unsigned int; using ll = long long; #define CIN( LL , A ) LL A; cin >> A #define GETLINE( A ) string A; getline( cin , A ) #define FOR_LL( VAR , INITIAL , FINAL_PLUS_ONE ) for( ll VAR = INITIAL ; VAR < FINAL_PLUS_ONE ; VAR ++ ) #define FOR_ITR( ARRAY , ITR , END ) for( auto ITR = ARRAY .begin() , END = ARRAY .end() ; ITR != END ; ITR ++ ) #define RETURN( LL , ANSWER ) const LL answer_for_contest = ( ANSWER ); cout << answer_for_contest << endl; return 0 template inline T Distance( const T& a , const ll& b ){ return a < b ? b - a : a - b; } int main() { CIN( string , abc ); ll n[3] = { stoi( abc.substr( 0 , 1 ) ) , stoi( abc.substr( 1 , 1 ) ) , stoi( abc.substr( 2 , 1 ) ) }; ll min = 10; ll max = -1; FOR_LL( i , 0 , 3 ){ if( n[i] < min ){ min = n[i]; } if( max < n[i] ){ max = n[i]; } } RETURN( ll , max - min ); }