<oerjan> le/rn abelian group//An abelian group is a group that spends all its time commuting, and therefore never does any real work.

char s[99],*p[9],**q;main(){for(;q=p,*q++=strtok(gets(s)," ");fork()||execvp(*p,p),wait(0))for(;*q++=strtok(0," "););}