public class Main {
public static void main(String[] str) {
int num = 0;
int sum = 0;
for(; num <=100; num++) {
if((num % 2) == 1) {
sum += num;
System.out.println(num + "-->" + sum);
}
}
}
}
int sum = 0;
for(int i = 1; i < 100; i += 2) {
sum += i;
}
System.out.println(sum);