System.in.eachLine{m=it.split(/[iuz]/).join().replace(' ','_*').replace('FB','X') x="__F_BF__FB_F__X"*12=~/${m=='F_*B'?'FB':m}/ println x?x.start(0)+1+" "+x.end():""}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).