#include <stdio.h> int main() { int a,b,c,d,max,s; while(scanf("%d%d%d",&a,&b,&c)!=EOF) { if(a!=0&&b!=0&&c!=0) { d=a>b?a:b; max=d>c?d:c; if(max==a) s=b+c-a; if(max==b) s=a+c-b; if(max==c) s=b+a-c; printf("%d\n",s); } } return 0; }