def isPossible$($a$,$ b$,$ c$,$ d$)$:

# Helper function to check if a pair is equal to $($c$,$ d$)$

def is$\_$equal$()$:

return a $==$ c and b $==$ d

# Perform operations until $($a$,$ b$)$ is equal to $($c$,$ d$)$ or no more operations can be performed

while not is$\_$equal$()$:

# Check if it's possible to perform B parentheses $2+$ B

if a $\%$ b $==0$ and a $//$ b $>=2$:

a $//=$ b

a $+=$ b

# Check if it's possible to perform BA

elif a $*$ b $==$ c:

a$,$ b $=$ c$,$ d

# Check if it's possible to perform B$2$A

elif b $*2==$ c:

a$,$ b $=$ c$,$ d

# Check if it's possible to perform B plus B

elif b $+$ b $==$ c:

a$,$ b $=$ c$,$ d

else:

# If none of the operations is possible, break the loop

break

# Check if the final pair is equal to $($c$,$ d$)$

return "YES" if is$\_$equal$()$ else $"$NO$"$

# Example usage

a$,$ b$,$ c$,$ d $=10,2,50,5$ # Replace these values with your own

result $=$ isPossible$($a$,$ b$,$ c$,$ d$)$

print$($result$)$