#include int main(){ int n,a,b,c,t; 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; } n=a*100+b*10+c; printf("%d\n",n); return 0;}