#include <stdio.h>

int main() {
    char ch;
    printf("Enter a character: ");
    scanf("%c", &ch);
    printf("You entered: %c\n", ch);

    char str[20];
    printf("Enter a string: ");
    scanf("%s", str);
    printf("You entered: %s\n", str);

    int num;
    printf("Enter an integer: ");
    scanf("%d", &num);
    printf("You entered: %d\n", num);

    float floatNum;
    printf("Enter a floating-point number: ");
    scanf("%f", &floatNum);
    printf("You entered: %f\n", floatNum);

    double doubleNum;
    printf("Enter a double floating-point number: ");
    scanf("%lf", &doubleNum);
    printf("You entered: %lf\n", doubleNum);
    
    
    double scientificNum = 3000.0;
    printf("Scientific Notation: %e\n", scientificNum);

    unsigned int unsignedNum = 42;
    printf("Unsigned Decimal Integer: %u\n", unsignedNum);

    int hexNum = 255;
    printf("Hexadecimal Integer: %x\n", hexNum);

    int octalNum = 64;
    printf("Octal Integer: %o\n", octalNum);

    int variable = 42;
    printf("Pointer Address: %p\n", &variable);

    int count;
    printf("Hello%n", &count);
    printf("Number of Characters Written So Far: %d\n", count);

    printf("Literal Percent Sign: %%\n");
    
    return 0;
}