I'm having trouble getting a certain output in my program

The output i'm getting:

Enter a sentence: Is THIS another Test???

There are 2 total characters.

There are 1 vowels.

There are 1 UPPERCASE letters.

There are 1 lowercase letters.

There are 0 other characters.

My desired output:

Enter a sentence: Is THIS another Test???

There are 23 total characters.

There are 6 vowels.

There are 6 UPPERCASE letters.

There are 11 lowercase letters.

There are 6 other characters.

Here's my code:

#include

#include

#include

bool isVowel(char);

int countUC(char *);

int countLC(char *);

int countOthers(char *);

int countVowels(char *);

bool isVowel(char ch) {

return ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' ||

ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U';

}

int countUC(char *str) {

int count = 0, i = 0;

char ch;

while((ch = str[i++])) {

if(ch >= 'A' && ch <= 'Z') {

++count;

}

}

return count;

}

int countLC(char *str) {

int count = 0, i = 0;

char ch;

while((ch = str[i++])) {

if(ch >= 'a' && ch <= 'z') {

++count;

}

}

return count;

}

int countOthers(char *str) {

int count = 0, i = 0;

char ch;

while((ch = str[i++])) {

if(!((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z'))) {

++count;

}

}

return count;

}

int countVowels(char *str) {

char *s = str;

int vowel = 0;

while (*s != '\0') {

if (isVowel(*s)) {

vowel++;

}

s++;

}

return vowel;

}

int main() {

char str[100];

int i;

int vowels = 0;

int UC;

int LC;

int Others;

int c;

int len;

printf("Enter a sentence: ");

scanf("%s", str);

LC = countLC(str);

UC = countUC(str);

Others = countOthers(str);

len=(int)strlen(str);

printf("There are %d total characters. ",len);

printf("There are %d vowels. ", countVowels(str));

printf("There are %d UPPERCASE letters. ", UC);

printf("There are %d lowercase letters. ", LC);

printf("There are %d other characters. ", Others);

return (0);

}