# Codeblock 7
residuals = nn.ModuleList([])
for _ in range(4):
    residual = Residual(num_channels=1024)
    residuals.append(residual)
    
x = torch.randn(1, 1024, 13, 13)

for i in range(len(residuals)):
    x = residuals[i](x)
    print(f'after residuals #{i}\t: {x.size()}')