#include <stdio.h>

int main() {

	int sum;
	int current_number;

	sum = 0;
	current_number = 0;

	while(current_number <= 100) {
		if(current_number % 2 == 1) {
			sum += current_number;
		}
		current_number++;
	}

	printf("Sum: %d", sum);
}