Res = "%s %s%s%s%s "%(Res,Str[I],Str[I+1],Str[I+2],Str[I+3]);
else:
Res = "%s%s%s%s%s "%(Res,Str[I],Str[I+1],Str[I+2],Str[I+3]);
Res = "%s %s%s%s%s "%(Res,Str[I],Str[I+1],Str[I+2],Str[I+3]);
else:
Res = "%s%s%s%s%s "%(Res,Str[I],Str[I+1],Str[I+2],Str[I+3]);