#include<stdio.h>
#include<string.h>
#define ll long long
#define N 110000
int main() {
ll i,sum,b,k,len,f[N];
char s[N],st[3];
while(scanf("%s%s%lld",s,st,&b)!=EOF) {
if(strcmp(st,"/")==0) {
sum=0;len=0;
for(i=0;s[i];i++) {
sum=sum*10+s[i]-'0';
f[len++]=sum/b;
sum=sum%b;
}
k=0;
for(i=0;i<len;i++) {
if(k)
printf("%lld",f[i]);
else if(f[i]){
k=1;
printf("%lld",f[i]);
}
}
if(k==0)
printf("0");
printf("\n");
}
else {
sum=0;
for(i=0;s[i];i++) {
sum=sum*10+s[i]-'0';
sum=sum%b;
}
printf("%lld\n",sum);
}
}
return 0;
}