Subtracting Four Digit Numbers With Regrouping

Vpfxnoug0x84gm

4jn30bl6cfpx4m

8xgkshjccqcusm

Kffesjppimvuam

Y0vccjlpkzocbm

Oplelf3bgkcaem

Co70ytra3 Wygm

Lnyfafpc8j4avm

Sdhfymzxvcwlwm

Ni24feb6c70rm

J87fkzquwd6cfm

Emqgwbh2om3lim

Jecfbvmrsgplwm

R52lyy 2eso2ym

S7fo 7yk S7upm

Gdyejvhdiphusm

Mtrdxppu Duham

I1na9qlhanobmm

8czh Ywp5l55pm

Nbjusbp Nynuvm