import sys
input = sys.stdin.readline

A=input().strip()
B=input().strip()

XA=[]
for a in A:
    if a=="?" or a=="*":
        XA[-1]+=a
    else:
        XA.append(a)

XB=[]
for a in B:
    if a=="?" or a=="*":
        XB[-1]+=a
    else:
        XB.append(a)

DP=[[1<<30]*(len(XB)+1) for i in range(len(XA)+1)]
DP[0][0]=0

for i in range(len(XA)+1):
    for j in range(len(XB)+1):
        if i==len(XA) and j==len(XB):
            continue
        
        if i==len(XA):
            d=XB[j]
            if len(d)==2:
                DP[i][j+1]=min(DP[i][j+1],DP[i][j])
            else:
                DP[i][j+1]=min(DP[i][j+1],DP[i][j]+1)
            continue

        if j==len(XB):
            c=XA[i]
            if len(c)==2:
                DP[i+1][j]=min(DP[i+1][j],DP[i][j])
            else:
                DP[i+1][j]=min(DP[i+1][j],DP[i][j]+1)
            continue

            
        c=XA[i]
        d=XB[j]

        #print(c,d,DP)

        DP[i+1][j]=min(DP[i+1][j],DP[i][j]+1)
        DP[i][j+1]=min(DP[i][j+1],DP[i][j]+1)
        DP[i+1][j+1]=min(DP[i+1][j+1],DP[i][j]+1)

        if c[0]==d[0]:
            DP[i+1][j+1]=min(DP[i+1][j+1],DP[i][j])

        if len(c)==2:
            DP[i+1][j]=min(DP[i+1][j],DP[i][j])

        if len(d)==2:
            DP[i][j+1]=min(DP[i][j+1],DP[i][j])

        if c[-1]=="*":
            if c[0]==d[0]:
                DP[i][j+1]=min(DP[i][j+1],DP[i][j])

        if d[-1]=="*":
            if c[0]==d[0]:
                DP[i+1][j]=min(DP[i+1][j],DP[i][j])

print(DP[-1][-1])