#include <stdio.h>
int main(void) {
int maximum, count, sum;
count = 0;
sum = 0;
printf("Enter maximum number: \n");
while(count <= maximum) {
if (count % 3 == 0) {
sum = sum + count;
}
count = count + 1;
}
printf("The sum of all multiples of three is %d.", sum
); return 0;
}
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