(define (test-run)
(do ([i 0 (+ i 1)]
[ret 0 (+ ret i)])
((>= i 10000000) ret)))
(display (test-run))
(newline)
(define (test-run)
(do ([i 0 (+ i 1)]
[ret 0 (+ ret i)])
((>= i 10000000) ret)))
(display (test-run))
(newline)