#include <stdio.h> int main() { int a,b,c,min; scanf("%d %d %d",&a,&b,&c); min=a; if (min>b){ min=b; }if (min>c){ min=c; } int gcd; for (int i=1;i<=min;i++){ if (a%i0&&b%i0&&c%i==0){ gcd=i; } } printf("%d",gcd); return 0; }