#include using namespace std; int main() { int a,b,c,t,n,m; scanf("%d",&n); a=n/100; b=(n/10)%10; c=n%10; if(a<b) { t=a;a=b;b=t; } if(a<c) { t=a;a=c;c=t; } if(b<c) { t=b;b=c;c=t; } m=100a+10b+c; printf("%d\n",m); return 0; }