$ ./install rcoffee
The installation script tells you where you can find the executables and what you should add to your PATH variable.
Afterwards align the four.seq using r_coffee and compare the output with the one given by LocARNA.
$ t_coffee four.seq > r_coffee.out
[r_coffee.out]
CLUSTAL FORMAT for T-COFFEE Version_9.03.r1318 [http://www.tcoffee.org] [MODE: ], CPU=0.00 sec, SCORE=74, Nseq=4, Len=74
M10740 GCGGAUUUAGCUCAGUU-GGGAGAGCGCCAGACUGAAGAUUUGGAGGUCC
K00349 GCCGAAAUAGCUCAGUU-GGGAGAGCGUUAGACUGAAGAUCUAAAGGUCC
K00283 GGGCCGGUAGCUCAUUUAGGCAGAGCGUCUGACUCUUAAUCAGACGGUCG
AF346993 CAGAGUGUAGCUUAAC---ACAAAGCACCCAACUUACACUUAGGAGAUUU
***** * * *** *** * * *
M10740 UGUGUUCGAUCCACAGAAUUCGCA
K00349 CCGGUUCAAUCCCGGGUUUCGGCA
K00283 CGUGUUCGAAUCGCGUCCGGCCCA
AF346993 CAACUUAACUUGACCG--CUCUGA
** *\