NTH?FOERZU ZERO + FOUR = ONE + THREE; 
NTH?ZOERFU ZERO + FOUR = ONE + THREE; 
NTOERH?FZU ZERO + FOUR = ONE + THREE; 
NTOERH?ZFU ZERO + FOUR = ONE + THREE; 
UTH?FREOZN ZERO + FOUR = ONE + THREE; 
UTH?ZREOFN ZERO + FOUR = ONE + THREE; 
UTREOH?FZN ZERO + FOUR = ONE + THREE; 
UTREOH?ZFN ZERO + FOUR = ONE + THREE;