Buggy python submission (verdict: Runtime Error):
N, M, K=[int(i) for i in input().split(" ")]
a=[int(i) for i in input().split(" ")]
b=[int(i) for i in input().split(" ")]

if (N>10**7) | (M>10**7) |(K>10**7):
    print(0)
else:
    time=0
    a_idx=0
    b_idx=0
    count=0
    while time<K:
        count+=1
        try:
            if a_idx+1==N:
                time+=b[b_idx]
                b_idx+=1
                if time>K:
                    count-=1
                continue
            elif b_idx+1==M:
                time+=a[b_idx]
                a_idx+=1
                if time>K:
                    count-=1
                continue    

            if a[a_idx]<b[b_idx]:
                time+=a[a_idx]
                a_idx+=1

            elif a[a_idx]>b[b_idx]:
                time+=b[b_idx]
                b_idx+=1
            else:
                try:
                    a_com=a_idx
                    b_com=b_idx
                    while True:
                        if a[a_com]>b[b_com]:
                            time+=a[a_idx]
                            a_idx+=1
                            break
                        elif a[a_com]<b[b_com]:
                            time+=b[b_idx]
                            b_idx+=1
                            break
                        a_com+=1
                        b_com+=1
                except:
                    time+=a[a_idx]
                    a_idx+=1
            if time>K:
                count-=1            
        except:
            break
    print(count)       

Fixed submission:
a=int(input())
print(a+a**2+a**3)

Buggy python submission (verdict: Runtime Error):
N, M, K=[int(i) for i in input().split(" ")]
a=[int(i) for i in input().split(" ")]
b=[int(i) for i in input().split(" ")]

if (N>10*8) | (M>10**8) |(K>10*8):
    print(0)
else:
    time=0
    a_idx=0
    b_idx=0
    count=0
    while time<K:
        count+=1
        try:
            if a_idx+1==N:
                time+=b[b_idx]
                b_idx+=1
                if time>K:
                    count-=1
                continue
            elif b_idx+1==M:
                time+=a[b_idx]
                a_idx+=1
                if time>K:
                    count-=1
                continue    

            if a[a_idx]<b[b_idx]:
                time+=a[a_idx]
                a_idx+=1

            elif a[a_idx]>b[b_idx]:
                time+=b[b_idx]
                b_idx+=1
            else:
                try:
                    a_com=a_idx
                    b_com=b_idx
                    while True:
                        if a[a_com]>b[b_com]:
                            time+=a[a_idx]
                            a_idx+=1
                            break
                        elif a[a_com]<b[b_com]:
                            time+=b[b_idx]
                            b_idx+=1
                            break
                        a_com+=1
                        b_com+=1
                except:
                    time+=a[a_idx]
                    a_idx+=1
            if time>K:
                count-=1            
        except:
            break
    print(count)       

Fixed submission:
a=int(input())
print(a+a**2+a**3)