char*s[]={"\x04naraion","\x0c","\x09usu",0,"\x00tanoshii","\x00yukaina","\x06nagi",0,0,"\xakanku","\xan","\x08ni","\x07nbou",0,"\x08sagi","\x0cusu"},*p,*b;main(c){for(;p=gets(&c);strcpy(p+*b,b+1),puts(*b?p:strcat(p," nakamaga popopopo-n")))b=s[c%236%17];}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).