#include <stdio.h>

int main(void) {
	// your code goes her
    int a,b,c,max;
    scanf("%d,%d,%d",&a,&b,&c);
    if (a>c,a>b){max=a; 
    printf("max=%d\n",max);}
    if (b>a,b>c) {max=b;      
     printf("max=%d\n",max);}
    else {max=c;
     printf("max=%d\n",max);}
	return 0;
}