#include<stdio.h>
int main(void)
{
const int number=10;
int x;
int count[number];
int i;
for(i=0;i<number;i++){
count[i]=0;
}
scanf("%d",&x);
while(x!=-1){
if(x>=0&&x<=9){
count[x]++;
}
scanf("%d",&x);
}
for(i=0;i<number;i++){
printf("%d:%d\n",i,count[i]);
}
return 0;
}