#include <stdio.h>
#include <string.h>
 
int main() {
    char str[200];
    int freq[256] = {0};  // Frequency array for all ASCII characters
    int i;
 
    // Input string
    printf("Enter a string: ");
    fgets(str, sizeof(str), stdin);
 
    // Count frequency of each character
    for (i = 0; str[i] != '\0'; i++) {
        if (str[i] != '\n')  // Ignore newline character
            freq[(unsigned char)str[i]]++;
    }
 
    // Display frequency
    printf("\nCharacter frequencies:\n");
    for (i = 0; i < 256; i++) {
        if (freq[i] != 0)
            printf("'%c' = %d\n", i, freq[i]);
    }
 
    return 0;
}