4477

$1 = \frac{47}{47}$	$2 = 7^{\sqrt{4}} - 47$	$3 = 4 - 4^{7 - 7}$	$4 = (7 - 7) \cdot 4 + 4$
$5 = 7 \cdot 7 - 44$	$6 = \sqrt{47 - 4 - 7}$	$7 = \frac{47 + \sqrt{4}}{7}$	$8 = 7^{4 - 4} + 7$
$9 = \frac{7}{7} + 4 + 4$	$10 = \frac{47 - 7}{4}$	$11 = \sqrt{44 + 77}$	$12 = (4 - \frac{7}{7}) \cdot 4$
$13 = \sqrt{74 + 7} + 4$	$14 = \frac{74 + 4!}{7}$	$15 = \frac{4}{4} + 7 + 7$	$16 = 47 - 4! - 7$
$17 = \sqrt{74 \cdot 4 - 7}$	$18 = \sqrt{(74 + 7) \cdot 4}$	$19 = 47 - 4 \cdot 7$	$20 = \frac{47 - 7}{\sqrt{4}}$
$21 = (7 - \sqrt{4 \cdot 4}) \cdot 7$	$22 = 4 + 4 + 7 + 7$	$23 = 4 \cdot 7 + \sqrt{4} - 7$	$24 = ((7 - 7) \cdot 4 + 4)!$
$25 = 74 - 7^{\sqrt{4}}$	$26 = \sqrt{\frac{7!}{7} - 44}$	$27 = 74 - 47$	$28 = \frac{4 + 4!}{7} \cdot 7$
$29 = 77 - 4! - 4!$	$30 = 44 - 7 - 7$	$31 = 4 \cdot 7 - 4 + 7$	$32 = {\sqrt{4}}^{\frac{7}{7} + 4}$
$33 = 77 - 44$	$34 = 4! - 4 + 7 + 7$	$35 = (7 - (4 - \sqrt{4})) \cdot 7$	$36 = 47 - 4 - 7$
$37 = 44 - \sqrt{7 \cdot 7}$	$38 = 47 - \sqrt{4} - 7$	$39 = 4 \cdot 7 + 4 + 7$	$40 = (7 - 4 + 7) \cdot 4$
$41 = 47 - (7 - 4)!$	$42 = 47 + \sqrt{4} - 7$	$43 = 44 - \frac{7}{7}$	$44 = 44 - 7 + 7$
$45 = \frac{7}{7} + 44$	$46 = 74 - 4 \cdot 7$	$47 = \sqrt{47 \cdot 47}$	$48 = 7 \cdot 7 - \frac{4}{4}$
$49 = 77 - 4! - 4$	$50 = 47 - 4 + 7$	$51 = \sqrt{7 \cdot 7} + 44$	$52 = 47 - \sqrt{4} + 7$
$53 = (7 - 4)! + 47$	$54 = {\sqrt{4}}^{7} - 74$	$55 = 77 - 4! + \sqrt{4}$	$56 = 47 + \sqrt{4} + 7$
$57 = 74 - 4! + 7$	$58 = 44 + 7 + 7$	$59 = 4 \cdot 7 + 4! + 7$	$60 = 74 - \sqrt{4} \cdot 7$
$61 = 77 - 4 \cdot 4$	$62 = \sqrt{4} \cdot 4! + 7 + 7$	$63 = 74 - 4 - 7$	$64 = 47 + 4! - 7$
$65 = 74 - \sqrt{4} - 7$	$66 = (7 - 4)! \cdot (4 + 7)$	$67 = \sqrt{74^{\sqrt{4}}} - 7$	$68 = 74 - (7 - 4)!$
$69 = 77 - 4 - 4$	$70 = \frac{7!}{74 - \sqrt{4}}$	$71 = 74 + 4 - 7$	$72 = \frac{7!}{74 - 4}$
$73 = 77 - \sqrt{4 \cdot 4}$	$74 = \sqrt{74 \cdot 74}$	$75 = 4 \cdot 7 + 47$	$76 = 77 - \frac{4}{4}$
$77 = 74 - 4 + 7$	$78 = \frac{4}{4} + 77$	$79 = 74 - \sqrt{4} + 7$	$80 = (47 - 7) \cdot \sqrt{4}$
$81 = {\sqrt{4}}^{7} - 47$	$82 = 4 \cdot 4! - 7 - 7$	$83 = 74 + \sqrt{4} + 7$	$84 = (7 - 4) \cdot 4 \cdot 7$
$85 = 74 + 4 + 7$	$86 = ?$	$87 = 47 \cdot \sqrt{4} - 7$	$88 = \sqrt{7744}$
$89 = \frac{4!}{\sqrt{4}} + 77$	$90 = \frac{7!}{(4 + 4) \cdot 7}$	$91 = 74 + 4! - 7$	$92 = (4! - \frac{7}{7}) \cdot 4$
$93 = 7 \cdot 7 + 44$	$94 = 47 + 47$	$95 = 4 \cdot 4! - \frac{7}{7}$	$96 = 7^{\sqrt{4}} + 47$
$97 = 77 - 4 + 4!$	$98 = (4 - \sqrt{4}) \cdot 7 \cdot 7$	$99 = 77 - \sqrt{4} + 4!$	$100 = (7 - 4 + 7)^{\sqrt{4}}$