#include <stdio.h>

int main() {
    char s[1000];
    int digitFreq[10] = {0}; // Array to store frequency of digits (0-9)
    int i;

    printf("Enter a string: ");
    fgets(s, sizeof(s), stdin);

    // Iterate through each character of the string
    for (i = 0; s[i] != '\0'; i++) {
        if (s[i] >= '0' && s[i] <= '9') {
            // If the current character is a digit, update its frequency
            digitFreq[s[i] - '0']++;
        }
    }

    // Print the frequency of each digit
    printf("Frequency of digits:\n");
    for (i = 0; i < 10; i++) {
        printf("Digit %d: %d\n", i, digitFreq[i]);
    }

    return 0;
}