Buggy python submission (verdict: Runtime Error):
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v]%mod)      
      
  


Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])

Buggy python submission (verdict: Time Limit Exceeded):
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])      
      
  


Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])

Buggy python submission (verdict: Runtime Error):
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])      
      
  


Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])

Buggy python submission (verdict: Runtime Error):
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
mod=10**9+7  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max((li[a-1][1]+dp[a-1][b-li[a-1][0]]),dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v]%mod)      
      
  


Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])

Buggy python submission (verdict: Runtime Error):
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
mod=10**9+7  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max((li[a-1][1]+dp[a-1][b-li[a-1][0]]),dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])      
      
  


Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])

Buggy python submission (verdict: Time Limit Exceeded):
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])      
      
  

Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])

Buggy python submission (verdict: Runtime Error):
v,n=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])      
      
  

Fixed submission:
n,v=[int(k) for k in input().split()]
li=[]
for i in range(n):
  li.append([int(k) for k in input().split()])
  
dp=[[0 for i in range(v+1)] for j in range(n+1)]
for a in range(1,n+1):
  for b in range(1,v+1):
    if(li[a-1][0]<=b):
      dp[a][b]=max(li[a-1][1]+dp[a-1][b-li[a-1][0]],dp[a-1][b])
    else:
      dp[a][b]=dp[a-1][b]
print(dp[n][v])