import sys
input = sys.stdin.readline

N,L,R=map(int,input().split())
A=list(map(int,input().split()))
mod=998244353

DP=[[0]*(N+1) for i in range(R+1)]
S=[0]*(R+1)

#for i in range(R+1):
#    DP[0][i]=1
S[0]=1

for i in range(1,R+1):
    for j in range(N+1):
        for t in range(1,R+1):
            if t>=A[j-1]+1:
                break
            if i-t*j<0:
                break
            
            DP[i][j]+=S[i-t*j]-DP[i-t*j][j]
            DP[i][j]%=mod

        S[i]+=DP[i][j]
        S[i]%=mod

ANS=0
for i in range(L,R+1):
    ANS+=sum(DP[i])%mod
    ANS%=mod

print(ANS)