37
abcde
adcbe
acdbe
adceb
ebcda
acbde
edcba
ebdca
bacde
adbce
adbec
dabce
ebacd
aecdb
eacdb
acbed
edbca
dacbe
cbade
adebc
becda
eabcd
daceb
abced
edabc
cabde
baced
ebadc
abdce
cadbe
eadcb
abecd
ebcad
beadc
edbac
cbaed
edacb
