N = []
N += input()
if N[0] == '-':
    T = '-'
    N = N[1:]
else:
    T = ''
y = []
for i in range(len(N)):
    
    if N[i] == '7':
        
        N[i] = '6'
        
        y += '1'
    elif y:
        y += '0'
        
print(T, *N, sep='', end=' ')

print(T, *y, sep='')