#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <math.h>

#define k 1000

int main()

{

    int i = 0;

    char num[k];

    for (i = 0; i < k; i++)

    {

        num[i] = 'a';

    }

    int zhen[k];

    for (i = 0; i < k; i++)

    {

        zhen[i] = -1;

    }

    scanf("%s", num);

    i = 0;

    while (num[i] != '\0')

    {

        zhen[i] = num[i] - '0';

        i++;

    }

    int count[10] = {0};

    for (i = 0; i < k; i++)

    {

        if (zhen[i] == -1)

        {

            break;

        }

        if (zhen[i] == 0)

        {

            count[0]++;continue;

        }

        if (zhen[i] == 1)

        {

            count[1]++;continue;

        }

        if (zhen[i] == 2)

        {

            count[2]++;continue;

        }

        if (zhen[i] == 3)

        {

            count[3]++;continue;

        }

        if (zhen[i] == 4)

        {

            count[4]++;continue;

        }

        if (zhen[i] == 5)

        {

            count[5]++;continue;

        }

        if (zhen[i] == 6)

        {

            count[6]++;continue;

        }

        if (zhen[i] == 7)

        {

            count[7]++;continue;

        }

        if (zhen[i] == 8)

        {

            count[8]++;continue;

        }

        if (zhen[i] == 9)

        {

            count[9]++;continue;

        }

    }

    for(i=0;i<10;i++){

        if(count[i]!=0){

            printf("%d:%d\n",i,count[i]);

        }

    }

}