#include <stdio.h>

int main() {
    int a,b,c,d;
    scanf("%d", &a);  //input a
    b=3;
    c=0;
    while(a>=b) {
        a=a-b;
        c=c+1;
    }
    d=a;
    printf("risultato = %d\n", c);
    printf("resto = %d", d);
}