// Problem 1

double age = 10.5;

// Problem 2

char initial = 'Z';

// Problem 3

int i = 3;
while (i <= 13) {
	System.out.println(i);
	i++;
}

// Problem 4

int i = 5;
while ( i <= 35) {
	if (i % 2 == 0) {
		System.out.println(i);
	}
	i++;
}

// Problem 5

int sum = 0;
int i = 1;
while(i <= 10) {
	sum = sum + i;
	i++;
}
System.out.println(sum);

// Problem 6

class Happy {
	public static void main(String[] args) {
		System.out.println("Happy Birthday!");
	}
}