Code chef :11
https://www.codechef.com/submit/CVDRUN
for _ in range(int(input())):
n,k,x,y=map(int,input().split(" "))
n=int(n)
k=int(k)
x=int(x)
y=int(y)
flag=0
for i in range(n):
x=(x+k)%n
if x==y:
print('YES')
flag=1
break
if flag==0:
print("NO")
https://www.codechef.com/submit/CVDRUN
for _ in range(int(input())):
n,k,x,y=map(int,input().split(" "))
n=int(n)
k=int(k)
x=int(x)
y=int(y)
flag=0
for i in range(n):
x=(x+k)%n
if x==y:
print('YES')
flag=1
break
if flag==0:
print("NO")
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