implicit none
character(52) Q,S
integer(8) o,t,u,v,w,x,y,z
read(*,*) S,t,u
v=len_trim(S)
t=t+1
u=u+1
if (t==u) then
    if (t==1) then
        write(*,*) S(2:v)
    else
        t=t-1
        u=u+1
        write(*,*) S(1:t)//S(u:v)
    end if
else
    if (t==1) then
        w=u-1
        x=u+1
        write(*,*) S(2:w)//S(x:v)
    else
        w=t-1
        x=t+1
        Q=S(:w)//S(x:v)
        o=len_trim(Q)
        y=u-1
        z=u+1
        write(*,*) Q(:y)//Q(z:o)
    end if
end if
end