#include <stdio.h>
int main(){
int x;
const int number = 10;
int count[number];
int i=0;
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]);
}
}