n = 744537
f = n % 10
n = (n - n % 10) // 10
e = n % 10
n = (n - n % 10) // 10
d = n % 10
n = (n - n % 10) // 10
c = n % 10
n = (n - n % 10) // 10
b = n % 10
n = (n - n % 10) // 10
a = n
if a == b == c == d == e and a == 0:
print(str(f) * e)
elif a == b and a == 0:
print(str(d) * c)
elif a != b != c != d != e != f:
print(str(b) * a)
biA9IDc0NDUzNwpmID0gbiAlIDEwCm4gPSAobiAtIG4gJSAxMCkgLy8gMTAKZSA9IG4gJSAxMApuID0gKG4gLSBuICUgMTApIC8vIDEwCmQgPSBuICUgMTAKbiA9IChuIC0gbiAlIDEwKSAvLyAxMApjID0gbiAlIDEwCm4gPSAobiAtIG4gJSAxMCkgLy8gMTAKYiA9IG4gJSAxMApuID0gKG4gLSBuICUgMTApIC8vIDEwCmEgPSBuCmlmIGEgPT0gYiA9PSBjID09IGQgPT0gZSBhbmQgYSA9PSAwOgoJcHJpbnQoc3RyKGYpICogZSkKZWxpZiBhID09IGIgYW5kIGEgPT0gMDoKCXByaW50KHN0cihkKSAqIGMpCmVsaWYgYSAhPSBiICE9IGMgIT0gZCAhPSBlICE9IGY6CglwcmludChzdHIoYikgKiBhKQkKCQoKCQ==