Permutacie
ABCD 
ABDC 
ACBD 
ACDB 
ADBC 
ADCB 
BACD 
BADC 
BCAD 
BCDA 
BDAC 
BDCA 
CABD 
CADB 
CBAD 
CBDA 
CDAB 
CDBA 
DABC 
DACB 
DBAC 
DBCA 
DCAB 
DCBA