n = int(input())
l=[]
for x in range(n):
    y= input()
    if ((y[0]=="T") and (len(l)<20)):
        if len(l)<10:
            l.append(str(x+1))
        else:
            z,y= y.split(" ")
            if int(y)<2:
                l.append(str(x+1))

print(" ".join(l))